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A navy, naval force, military maritime fleet, war navy, or maritime force is the
branch A branch, also called a ramus in botany, is a stem that grows off from another stem, or when structures like veins in leaves are divided into smaller veins. History and etymology In Old English, there are numerous words for branch, includ ...
of a nation's
armed forces A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. Militaries are typically authorized and maintained by a sovereign state, with their members identifiable by a ...
principally designated for
naval A navy, naval force, military maritime fleet, war navy, or maritime force is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operatio ...
and
amphibious warfare Amphibious warfare is a type of offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the operations were conduc ...
; namely,
lake A lake is often a naturally occurring, relatively large and fixed body of water on or near the Earth's surface. It is localized in a basin or interconnected basins surrounded by dry land. Lakes lie completely on land and are separate from ...
-borne,
river A river is a natural stream of fresh water that flows on land or inside Subterranean river, caves towards another body of water at a lower elevation, such as an ocean, lake, or another river. A river may run dry before reaching the end of ...
ine,
littoral The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely i ...
, or
ocean The ocean is the body of salt water that covers approximately 70.8% of Earth. The ocean is conventionally divided into large bodies of water, which are also referred to as ''oceans'' (the Pacific, Atlantic, Indian Ocean, Indian, Southern Ocean ...
-borne
combat Combat (French language, French for ''fight'') is a purposeful violent Conflict (process), conflict between multiple combatants with the intent to harm the opposition. Combat may be armed (using weapons) or unarmed (Hand-to-hand combat, not usin ...
operations and related functions. It includes anything conducted by surface
ships A ship is a large vessel that travels the world's oceans and other navigable waterways, carrying cargo or passengers, or in support of specialized missions, such as defense, research and fishing. Ships are generally distinguished from boats, ...
, amphibious ships,
submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
s, and seaborne
aviation Aviation includes the activities surrounding mechanical flight and the aircraft industry. ''Aircraft'' include fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air aircraft such as h ...
, as well as ancillary support, communications, training, and other fields. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, deter or confront
piracy Piracy is an act of robbery or criminal violence by ship or boat-borne attackers upon another ship or a coastal area, typically with the goal of stealing cargo and valuable goods, or taking hostages. Those who conduct acts of piracy are call ...
, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of a navy also may incorporate nuclear deterrence by use of
submarine-launched ballistic missile A submarine-launched ballistic missile (SLBM) is a ballistic missile capable of being launched from Ballistic missile submarine, submarines. Modern variants usually deliver multiple independently targetable reentry vehicles (MIRVs), each of which ...
s. Naval operations can be broadly divided between riverine and littoral applications (
brown-water navy A brown-water navy or riverine navy, in the broadest sense, is a naval force capable of military operations in inland waters (rivers, lakes and inland seas) and nearshores. The term originated in the United States Navy during the American Ci ...
), open-ocean applications (
blue-water navy A blue-water navy is a Navy, maritime force capable of operating globally, essentially across the deep waters of open oceans. While definitions of what actually constitutes such a force vary, there is a requirement for the ability to exercise Co ...
), and something in between (
green-water navy A green-water navy is a maritime force that is capable of operating in its state's littoral zones and has limited competency to operate in the surrounding marginal seas. It is a relatively new term, and has been created to better distinguish ...
), although these distinctions are more about strategic scope than tactical or operational division.


Etymology and meanings

First attested in English in the early 14th century, the word "navy" came via
Old French Old French (, , ; ) was the language spoken in most of the northern half of France approximately between the late 8th -4; we might wonder whether there's a point at which it's appropriate to talk of the beginnings of French, that is, when it wa ...
, "fleet of ships", from the Latin , "a vessel, a ship, bark, boat", from , "ship". The word "naval" came from Latin , "pertaining to ship"; cf. Greek language, Greek (), "ship", (), "seaman, sailor". The earliest attested form of the word is in the Mycenaean Greek compound word , ''na-u-do-mo'' (*), "shipbuilders", written in
Linear B Linear B is a syllabary, syllabic script that was used for writing in Mycenaean Greek, the earliest Attested language, attested form of the Greek language. The script predates the Greek alphabet by several centuries, the earliest known examp ...
syllabic script. The word formerly denoted fleets of both commercial and military nature. In modern usage "navy" used alone always denotes a military fleet, although the term " merchant navy" for a commercial fleet still incorporates the non-military
word sense In linguistics, a word sense is one of the meanings of a word. For example, a dictionary may have over 50 different senses of the word "play", each of these having a different meaning based on the context of the word's usage in a sentence, as f ...
. This overlap in word senses between commercial and military fleets grew out of the inherently dual-use nature of fleets; centuries ago, nationality was a trait that unified a fleet across both civilian and military uses. Although nationality of commercial vessels has little importance in peacetime trade other than for
tax avoidance Tax avoidance is the legal usage of the tax regime in a single territory to one's own advantage to reduce the amount of tax that is payable. A tax shelter is one type of tax avoidance, and tax havens are jurisdictions that facilitate reduced taxe ...
, it can have greater meaning during wartime, when
supply chain A supply chain is a complex logistics system that consists of facilities that convert raw materials into finished products and distribute them to end consumers or end customers, while supply chain management deals with the flow of goods in distri ...
s become matters of patriotic attack and defense, and when in some cases private vessels are even temporarily converted to military vessels. The latter was especially important, and common, before 20th-century military technology existed, when merely adding
artillery Artillery consists of ranged weapons that launch Ammunition, munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during sieges, and l ...
and naval infantry to any sailing vessel could render it fully as martial as any military-owned vessel. Such
privateer A privateer is a private person or vessel which engages in commerce raiding under a commission of war. Since robbery under arms was a common aspect of seaborne trade, until the early 19th century all merchant ships carried arms. A sovereign o ...
ing has been rendered obsolete in blue-water strategy since modern missile and aircraft systems grew to leapfrog over artillery and infantry in many respects; but privateering nevertheless remains potentially relevant in littoral warfare of a limited and asymmetric nature.


History

Naval warfare developed when humans first fought from water-borne vessels. Before the introduction of the
cannon A cannon is a large-caliber gun classified as a type of artillery, which usually launches a projectile using explosive chemical propellant. Gunpowder ("black powder") was the primary propellant before the invention of smokeless powder during th ...
and ships with enough capacity to carry them, navy warfare primarily involved ramming and boarding actions. In the time of
ancient Greece Ancient Greece () was a northeastern Mediterranean civilization, existing from the Greek Dark Ages of the 12th–9th centuries BC to the end of classical antiquity (), that comprised a loose collection of culturally and linguistically r ...
and the
Roman Empire The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...
, naval warfare centered on long, narrow vessels powered by banks of oarsmen (such as
trireme A trireme ( ; ; cf. ) was an ancient navies and vessels, ancient vessel and a type of galley that was used by the ancient maritime civilizations of the Mediterranean Sea, especially the Phoenicians, ancient Greece, ancient Greeks and ancient R ...
s and quinqueremes) designed to ram and sink enemy vessels or come alongside the enemy vessel so its occupants could be attacked hand-to-hand. Naval warfare continued in this vein through the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
until the cannon became commonplace and capable of being reloaded quickly enough to be reused in the same battle. In
ancient China The history of China spans several millennia across a wide geographical area. Each region now considered part of the Chinese world has experienced periods of unity, fracture, prosperity, and strife. Chinese civilization first emerged in the Y ...
, large naval battles were known since the
Qin dynasty The Qin dynasty ( ) was the first Dynasties of China, imperial dynasty of China. It is named for its progenitor state of Qin, a fief of the confederal Zhou dynasty (256 BC). Beginning in 230 BC, the Qin under King Ying Zheng enga ...
(''also see''
Battle of Red Cliffs The Battle of Red Cliffs, also known as the Battle of Chibi, was a decisive naval battle in China that took place during the winter of AD 208–209. It was fought on the Yangtze River between the forces of warlords controlling different parts ...
, 208), employing the war junk during the
Han dynasty The Han dynasty was an Dynasties of China, imperial dynasty of China (202 BC9 AD, 25–220 AD) established by Liu Bang and ruled by the House of Liu. The dynasty was preceded by the short-lived Qin dynasty (221–206 BC ...
. However, China's first official standing navy was not established until the
Southern Song dynasty The Song dynasty ( ) was an imperial dynasty of China that ruled from 960 to 1279. The dynasty was founded by Emperor Taizu of Song, who usurped the throne of the Later Zhou dynasty and went on to conquer the rest of the Ten Kingdoms, endin ...
in the 12th century, a time when
gunpowder Gunpowder, also commonly known as black powder to distinguish it from modern smokeless powder, is the earliest known chemical explosive. It consists of a mixture of sulfur, charcoal (which is mostly carbon), and potassium nitrate, potassium ni ...
was a revolutionary new application to warfare. The
Chola Dynasty The Chola dynasty () was a Tamil dynasty originating from Southern India. At its height, it ruled over the Chola Empire, an expansive maritime empire. The earliest datable references to the Chola are from inscriptions dated to the 3rd cen ...
in
Southern India South India, also known as Southern India or Peninsular India, is the southern part of the Deccan Peninsula in India encompassing the states of Andhra Pradesh, Karnataka, Kerala, Tamil Nadu and Telangana as well as the union territories of ...
had a navy composed of trade ships transporting armies overseas. The Chola Navy reached its peak under
Rajendra I Rajendra I (26 July 971 – 1044), often referred to as Rajendra the Great, was a Chola Emperor who reigned from 1014 to 1044. He was born in Thanjavur to Rajaraja I. His queen was Vanavan Mahadevi and he assumed royal power as co-regent with ...
, and was most notably used in invasions of
Sri Lanka Sri Lanka, officially the Democratic Socialist Republic of Sri Lanka, also known historically as Ceylon, is an island country in South Asia. It lies in the Indian Ocean, southwest of the Bay of Bengal, separated from the Indian subcontinent, ...
and
Southeast Asia Southeast Asia is the geographical United Nations geoscheme for Asia#South-eastern Asia, southeastern region of Asia, consisting of the regions that are situated south of China, east of the Indian subcontinent, and northwest of the Mainland Au ...
. Kulke, p. 212. Nusantaran thalassocracies made extensive use of naval power and technologies. This enabled the seafaring local people (either Malays of
Srivijaya Srivijaya (), also spelled Sri Vijaya, was a Hinduism, Hindu-Buddhism, Buddhist thalassocracy, thalassocratic empire based on the island of Sumatra (in modern-day Indonesia) that influenced much of Southeast Asia. Srivijaya was an important ...
or Javanese of Mataram) to attack as far as the coast of
Tanzania Tanzania, officially the United Republic of Tanzania, is a country in East Africa within the African Great Lakes region. It is bordered by Uganda to the northwest; Kenya to the northeast; the Indian Ocean to the east; Mozambique and Malawi to t ...
and
Mozambique Mozambique, officially the Republic of Mozambique, is a country located in Southeast Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi and Zambia to the northwest, Zimbabwe to the west, and Eswatini and South Afr ...
with 1000 boats and attempted to take the citadel of Qanbaloh, about 7,000 km to their West, in 945–946 AD.Kumar, Ann (2012). 'Dominion Over Palm and Pine: Early Indonesia's Maritime Reach', in Geoff Wade (ed.), ''Anthony Reid and the Study of the Southeast Asian Past'' (Singapore: Institute of Southeast Asian Studies), 101–122. In 1350 AD
Majapahit Majapahit (; (eastern and central dialect) or (western dialect)), also known as Wilwatikta (; ), was a Javanese people, Javanese Hinduism, Hindu-Buddhism, Buddhist thalassocracy, thalassocratic empire in Southeast Asia based on the island o ...
launched its largest military expedition, the invasion of
Pasai The Samudera Pasai Sultanate (), also known as Samudera or Pasai or Samudera Darussalam or Pacem, was a Muslim kingdom on the north coast of Sumatra from the 13th to the 16th centuries. Little evidence has been left to allow for historical ...
, with 400 large jong and innumerable smaller vessels.Hill (June 1960). " Hikayat Raja-Raja Pasai". ''Journal of the Malaysian Branch of the Royal Asiatic Society''. 33: pp. 98 and 157: "Then he directed them to make ready all the equipment and munitions of war needed for an attack on the land of Pasai – about four hundred of the largest junks, and also many barges (malangbang) and galleys." See also Nugroho (2011), pp. 270 and 286, quoting ''Hikayat Raja-Raja Pasai'', 3: 98: "''Sa-telah itu, maka di-suroh baginda musta'idkan segala kelengkapan dan segala alat senjata peperangan akan mendatangi negeri Pasai itu, sa-kira-kira empat ratus jong yang besar-besar dan lain daripada itu banyak lagi daripada malangbang dan kelulus''." (After that, he is tasked by His Majesty to ready all the equipment and all weapons of war to come to that country of Pasai, about four hundred large jongs and other than that much more of malangbang and kelulus.) The second largest military expedition, invasion of Singapura in 1398, Majapahit deployed 300 jong with no less than 200,000 men.Nugroho (2011), pp. 271, 399–400, quoting ''Sejarah Melayu'', 10.4: 77: "... ''maka bagindapun segera menyuruh berlengkap tiga ratus buah jung, lain dari pada itu kelulus, pelang, jongkong, tiada terbilang lagi''." (then His Majesty immediately ordered to equip three hundred jong, other than that kelulus, pelang, jongkong in uncountable numbers.) The average jong used by Majapahit would be about 76.18–79.81 m LOA, carrying 600–700 men, with 1200–1400 tons deadweight. The mass and deck space required to carry a large number of cannon made oar-based propulsion impossible, and ships came to rely primarily on
sail A sail is a tensile structure, which is made from fabric or other membrane materials, that uses wind power to propel sailing craft, including sailing ships, sailboats, windsurfers, ice boats, and even sail-powered land vehicles. Sails may b ...
s. Warships were designed to carry increasing numbers of cannon and naval tactics evolved to bring a ship's firepower to bear in a broadside, with ships-of-the-line arranged in a line of battle. The development of large capacity, sail-powered ships carrying cannon led to a rapid expansion of
Europe Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
an navies, especially the Spanish and Portuguese navies that dominated in the 16th and early 17th centuries, and helped propel the
Age of Discovery The Age of Discovery (), also known as the Age of Exploration, was part of the early modern period and overlapped with the Age of Sail. It was a period from approximately the 15th to the 17th century, during which Seamanship, seafarers fro ...
and
colonialism Colonialism is the control of another territory, natural resources and people by a foreign group. Colonizers control the political and tribal power of the colonised territory. While frequently an Imperialism, imperialist project, colonialism c ...
. The repulsion of the
Spanish Armada The Spanish Armada (often known as Invincible Armada, or the Enterprise of England, ) was a Spanish fleet that sailed from Lisbon in late May 1588, commanded by Alonso de Guzmán, Duke of Medina Sidonia, an aristocrat without previous naval ...
(1588) by the English fleet revolutionized naval warfare by the success of a guns-only strategy and caused a major overhaul of the
Spanish Navy The Spanish Navy, officially the Armada, is the Navy, maritime branch of the Spanish Armed Forces and one of the oldest active naval forces in the world. The Spanish Navy was responsible for a number of major historic achievements in navigation ...
, partly along English lines, which resulted in even greater dominance by the Spanish. From the beginning of the 17th century the Dutch cannibalized the
Portuguese Empire The Portuguese Empire was a colonial empire that existed between 1415 and 1999. In conjunction with the Spanish Empire, it ushered in the European Age of Discovery. It achieved a global scale, controlling vast portions of the Americas, Africa ...
in the
East East is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fact that ea ...
and, with the immense wealth gained, challenged Spanish
hegemony Hegemony (, , ) is the political, economic, and military predominance of one State (polity), state over other states, either regional or global. In Ancient Greece (ca. 8th BC – AD 6th c.), hegemony denoted the politico-military dominance of ...
at sea. From the 1620s, Dutch raiders seriously troubled Spanish shipping and, after a number of battles that went both ways, the
Dutch Navy The Royal Netherlands Navy (, ) is the Navy, maritime service branch of the Netherlands Armed Forces. It traces its history to 8 January 1488, making it the List of navies, third-oldest navy in the world. During the 17th and early 18th centurie ...
finally broke the long dominance of the Spanish Navy in the Battle of the Downs (1639).
England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...
emerged as a major naval power in the mid-17th century in the first Anglo-Dutch war with a technical victory. Successive decisive Dutch victories in the second and third Anglo-Dutch Wars confirmed the Dutch mastery of the seas during the
Dutch Golden Age The Dutch Golden Age ( ) was a period in the history of the Netherlands which roughly lasted from 1588, when the Dutch Republic was established, to 1672, when the '' Rampjaar'' occurred. During this period, Dutch trade, scientific development ...
, financed by the expansion of the
Dutch Empire The Dutch colonial empire () comprised overseas territories and trading posts under some form of Dutch control from the early 17th to late 20th centuries, including those initially administered by Dutch chartered companies—primarily the Du ...
. The
French Navy The French Navy (, , ), informally (, ), is the Navy, maritime arm of the French Armed Forces and one of the four military service branches of History of France, France. It is among the largest and most powerful List of navies, naval forces i ...
won some important victories near the end of the 17th century but a focus upon land forces led to the French Navy's relative neglect, which allowed the
Royal Navy The Royal Navy (RN) is the naval warfare force of the United Kingdom. It is a component of His Majesty's Naval Service, and its officers hold their commissions from the King of the United Kingdom, King. Although warships were used by Kingdom ...
to emerge with an ever-growing advantage in size and quality, especially in tactics and experience, from 1695. As a response to growing naval influence of the navies of Portuguese, the warrior king of the Marathas,
Shivaji Shivaji I (Shivaji Shahaji Bhonsale, ; 19 February 1630 – 3 April 1680) was an Indian ruler and a member of the Bhonsle dynasty. Shivaji carved out his own independent kingdom from the Sultanate of Bijapur that formed the genesis of the ...
laid the foundation of the Maratha navy in 1654. Throughout the 18th century the Royal Navy gradually gained ascendancy over the French Navy, with victories in the
War of Spanish Succession The War of the Spanish Succession was a European great power conflict fought between 1701 and 1714. The immediate cause was the death of the childless Charles II of Spain in November 1700, which led to a struggle for control of the Spanish ...
(1701–1714), inconclusive battles in the
War of Austrian Succession The War of the Austrian Succession was a European conflict fought between 1740 and 1748, primarily in Central Europe, the Austrian Netherlands, Italy, the Atlantic Ocean and Mediterranean Sea. Related conflicts include King George's War in Nort ...
(1740–1748), victories in the
Seven Years' War The Seven Years' War, 1756 to 1763, was a Great Power conflict fought primarily in Europe, with significant subsidiary campaigns in North America and South Asia. The protagonists were Kingdom of Great Britain, Great Britain and Kingdom of Prus ...
(1754–1763), a partial reversal during the
American War of Independence The American Revolutionary War (April 19, 1775 – September 3, 1783), also known as the Revolutionary War or American War of Independence, was the armed conflict that comprised the final eight years of the broader American Revolution, in which Am ...
(1775–1783), and consolidation into uncontested supremacy during the 19th century from the
Battle of Trafalgar The Battle of Trafalgar was a naval engagement that took place on 21 October 1805 between the Royal Navy and a combined fleet of the French Navy, French and Spanish Navy, Spanish navies during the War of the Third Coalition. As part of Na ...
in 1805. These conflicts saw the development and refinement of
tactics Tactic(s) or Tactical may refer to: * Tactic (method), a conceptual action implemented as one or more specific tasks ** Military tactics, the disposition and maneuver of units on a particular sea or battlefield ** Chess tactics In chess, a tac ...
that came to be called the line of battle. The next stage in the evolution of naval warfare was the introduction of metal plating along the hull sides. The increased mass required steam-powered engines, resulting in an arms race between armor and weapon thickness and firepower. The first armored vessels, the French and British , made wooden vessels obsolete. Another significant improvement came with the invention of the rotating turrets, which allowed the guns to be aimed independently of ship movement. The battle between and during the
American Civil War The American Civil War (April 12, 1861May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States between the Union (American Civil War), Union ("the North") and the Confederate States of A ...
(1861–1865) is often cited as the beginning of this age of maritime conflict. The
Russian Navy The Russian Navy is the Navy, naval arm of the Russian Armed Forces. It has existed in various forms since 1696. Its present iteration was formed in January 1992 when it succeeded the Navy of the Commonwealth of Independent States (which had i ...
was considered the third strongest in the world on the eve of the
Russo-Japanese War The Russo-Japanese War (8 February 1904 – 5 September 1905) was fought between the Russian Empire and the Empire of Japan over rival imperial ambitions in Manchuria and the Korean Empire. The major land battles of the war were fought on the ...
, which turned to be a catastrophe for the Russian military in general and the Russian Navy in particular. Although neither party lacked courage, the Russians were defeated by the Japanese in the Battle of Port Arthur, which was the first time in warfare that mines were used for offensive purposes. The warships of the Baltic Fleet sent to the Far East were lost in the Battle of Tsushima. A further step change in naval firepower occurred when the United Kingdom launched in 1906, but naval tactics still emphasized the line of battle. The first practical military
submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
s were developed in the late 19th century and by the end of
World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ...
had proven to be a powerful arm of naval warfare. During
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
,
Nazi Germany Nazi Germany, officially known as the German Reich and later the Greater German Reich, was the German Reich, German state between 1933 and 1945, when Adolf Hitler and the Nazi Party controlled the country, transforming it into a Totalit ...
's submarine fleet of
U-boat U-boats are Submarine#Military, naval submarines operated by Germany, including during the World War I, First and Second World Wars. The term is an Anglicization#Loanwords, anglicized form of the German word , a shortening of (), though the G ...
s almost starved the United Kingdom into submission and inflicted tremendous losses on U.S. coastal shipping. The , a
sister ship A sister ship is a ship of the same Ship class, class or of virtually identical design to another ship. Such vessels share a nearly identical hull and superstructure layout, similar size, and roughly comparable features and equipment. They o ...
of , was almost put out of action by miniature submarines known as
X-Craft The X class was a World War II midget submarine class built for the Royal Navy during 1943–44. It was substantially larger than the original Chariot manned torpedo. Known individually as X-Craft, the vessels were designed to be towed to the ...
. The X-Craft severely damaged her and kept her in port for some months. A major paradigm shift in naval warfare occurred with the introduction of the
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and hangar facilities for supporting, arming, deploying and recovering carrier-based aircraft, shipborne aircraft. Typically it is the ...
. First at
Taranto Taranto (; ; previously called Tarent in English) is a coastal city in Apulia, Southern Italy. It is the capital of the province of Taranto, serving as an important commercial port as well as the main Italian naval base. Founded by Spartans ...
in 1940 and then at
Pearl Harbor Pearl Harbor is an American lagoon harbor on the island of Oahu, Hawaii, west of Honolulu. It was often visited by the naval fleet of the United States, before it was acquired from the Hawaiian Kingdom by the U.S. with the signing of the Reci ...
in 1941, the carrier demonstrated its ability to strike decisively at enemy ships out of sight and range of surface vessels. The
Battle of Leyte Gulf The Battle of Leyte Gulf () 23–26 October 1944, was the largest naval battle of World War II and by some criteria the largest naval battle in history, with over 200,000 naval personnel involved. By late 1944, Japan possessed fewer capital sh ...
(1944) was arguably the
largest naval battle in history The "largest naval battle in history" is a disputed title between adherents of varying criteria which include the numbers of personnel or vessels involved in the naval battle, the total Displacement (ship), displacement of the vessels involved and ...
; it was also the last battle in which battleships played a significant role. By the end of
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, the carrier had become the dominant force of naval warfare. World War II also saw the
United States The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
become by far the largest naval power in the world. In the late 20th and early 21st centuries, the
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
possessed over 70% of the world's total numbers and total tonnage of naval vessels of 1,000 tons or greater."Weighing the US Navy", ''Defense & Security Analysis'', Volume 17, Issue 3, December 2001, pp. 259–265. Throughout the rest of the 20th century, the
United States Navy The United States Navy (USN) is the naval warfare, maritime military branch, service branch of the United States Department of Defense. It is the world's most powerful navy with the largest Displacement (ship), displacement, at 4.5 millio ...
would maintain a tonnage greater than that of the next 17 largest navies combined. During the
Cold War The Cold War was a period of global Geopolitics, geopolitical rivalry between the United States (US) and the Soviet Union (USSR) and their respective allies, the capitalist Western Bloc and communist Eastern Bloc, which lasted from 1947 unt ...
, the
Soviet Navy The Soviet Navy was the naval warfare Military, uniform service branch of the Soviet Armed Forces. Often referred to as the Red Fleet, the Soviet Navy made up a large part of the Soviet Union's strategic planning in the event of a conflict with t ...
became a significant armed force, with large numbers of large, heavily armed
ballistic missile submarine A ballistic missile submarine is a submarine capable of deploying submarine-launched ballistic missiles (SLBMs) with nuclear warheads. These submarines became a major weapon system in the Cold War because of their nuclear deterrence capabi ...
s and extensive use of heavy, long-ranged antisurface missiles to counter the numerous United States carrier battle groups. Only two nations, the United States and
France France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
, presently operate CATOBAR carriers of any size, while
Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...
,
China China, officially the People's Republic of China (PRC), is a country in East Asia. With population of China, a population exceeding 1.4 billion, it is the list of countries by population (United Nations), second-most populous country after ...
and
India India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
operate sizeable STOBAR carriers (although all three are originally of Russian design). The
United Kingdom The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
is also operating two carriers, which are the largest
STOVL A short take-off and vertical landing aircraft (STOVL aircraft) is a fixed-wing aircraft that is able to take off from a short runway (or take off vertically if it does not have a heavy payload) and land vertically (i.e. with no runway). The ...
vessels in service, and India is currently building one aircraft carrier, , and considering another. France is also looking at a new carrier, probably using a CATOBAR system and possibly based on the British ''Queen Elizabeth'' design.


Operations

A navy typically operates from one or more
naval base A naval base, navy base, or military port is a military base, where warships and naval ships are docked when they have no mission at sea or need to restock. Ships may also undergo repairs. Some naval bases are temporary homes to aircraft that usu ...
s. The base is a
port A port is a maritime facility comprising one or more wharves or loading areas, where ships load and discharge cargo and passengers. Although usually situated on a sea coast or estuary, ports can also be found far inland, such as Hamburg, Manch ...
that is specialized in naval operations, and often includes housing, a munitions depot, docks for the vessels, and various repair facilities. During times of war temporary bases may be constructed in closer proximity to strategic locations, as it is advantageous in terms of patrols and station-keeping. Nations with historically strong naval forces have found it advantageous to obtain basing rights in other countries in areas of strategic interest. Navy ships can operate independently or with a group, which may be a small squadron of comparable ships, or a larger
naval fleet A fleet or naval fleet is a large formation of warships – the largest formation in any navy – controlled by one leader. A fleet at sea is the direct equivalent of an army on land. Purpose In the modern sense, fleets are usually, but no ...
of various specialized ships. The commander of a fleet travels in the
flagship A flagship is a vessel used by the commanding officer of a group of navy, naval ships, characteristically a flag officer entitled by custom to fly a distinguishing flag. Used more loosely, it is the lead ship in a fleet of vessels, typically ...
, which is usually the most powerful vessel in the group. Before radio was invented, commands from the flagship were communicated by means of flags. At night signal lamps could be used for a similar purpose. Later these were replaced by the radio transmitter, or the flashing light when radio silence was needed. A " blue water navy" is designed to operate far from the coastal waters of its home nation. These are ships capable of maintaining station for long periods of time in deep ocean, and will have a long logistical tail for their support. Many are also nuclear powered to save having to refuel. By contrast a " brown water navy" operates in the coastal periphery and along inland waterways, where larger ocean-going naval vessels can not readily enter. Regional powers may maintain a " green water navy" as a means of localized force projection. Blue water fleets may require specialized vessels, such as
minesweeper A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of ...
s, when operating in the
littoral The littoral zone, also called litoral or nearshore, is the part of a sea, lake, or river that is close to the shore. In coastal ecology, the littoral zone includes the intertidal zone extending from the high water mark (which is rarely i ...
regions along the coast.


Traditions

A basic tradition is that all ships commissioned in a navy are referred to as ships rather than vessels, with the exception of destroyers and submarines, which are known as boats. The prefix on a ship's name indicates that it is a commissioned ship. An important tradition on board naval vessels of some nations has been the ship's bell. This was historically used to mark the passage of time, as warning devices in heavy fog, and for alarms and ceremonies. The ship's captain, and more senior officers are "piped" aboard the ship using a Boatswain's call. In the United States, the
First Navy Jack The First Navy Jack was the Jack of the United States, naval jack of the United States from 1975 to 1976 and again from 2002 to 2019. It was authorized by the United States Navy, U.S. Navy and was flown from the jackstaff of commissioned vessels ...
is a flag that has the words, "Don't Tread on Me" on the flag. By English tradition, ships have been referred to as a "she". However, it was long considered bad luck to permit women to sail on board naval vessels. To do so would invite a terrible storm that would wreck the ship. The only women that were welcomed on board were figureheads mounted on the prow of the ship. Firing a cannon salute partially disarms the ship, so firing a cannon for no combat reason showed respect and trust. As the tradition evolved, the number of cannons fired became an indication of the rank of the official being saluted.


Naval organization


Ships

Historically, navy ships were primarily intended for warfare. They were designed to withstand damage and to inflict the same, but only carried munitions and supplies for the voyage (rather than merchant cargo). Often, other ships that were not built specifically for warfare, such as the
galleon Galleons were large, multi-decked sailing ships developed in Spain and Portugal. They were first used as armed cargo carriers by Europe, Europeans from the 16th to 18th centuries during the Age of Sail, and they were the principal vessels dr ...
or the armed merchant ships in
World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...
, did carry armaments. In more recent times, navy ships have become more specialized and have included supply ships, troop transports, repair ships, oil tankers and other logistics support ships as well as combat ships. Modern navy combat ships are generally divided into seven main categories:
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and hangar facilities for supporting, arming, deploying and recovering carrier-based aircraft, shipborne aircraft. Typically it is the ...
s,
cruiser A cruiser is a type of warship. Modern cruisers are generally the largest ships in a fleet after aircraft carriers and amphibious assault ships, and can usually perform several operational roles from search-and-destroy to ocean escort to sea ...
s,
destroyer In naval terminology, a destroyer is a fast, maneuverable, long-endurance warship intended to escort larger vessels in a fleet, convoy, or carrier battle group and defend them against a wide range of general threats. They were conceived i ...
s,
frigate A frigate () is a type of warship. In different eras, the roles and capabilities of ships classified as frigates have varied. The name frigate in the 17th to early 18th centuries was given to any full-rigged ship built for speed and maneuvera ...
s,
corvette A corvette is a small warship. It is traditionally the smallest class of vessel considered to be a proper (or " rated") warship. The warship class above the corvette is that of the frigate, while the class below was historically that of the sloo ...
s,
submarine A submarine (often shortened to sub) is a watercraft capable of independent operation underwater. (It differs from a submersible, which has more limited underwater capability.) The term "submarine" is also sometimes used historically or infor ...
s, and
amphibious assault ship An amphibious assault ship is a type of warship employed to land and support ground forces on enemy territory during an armed conflict. The design evolved from aircraft carriers converted for use as helicopter carriers (which, as a result, ar ...
s. There are also support and auxiliary ships, including the oiler,
minesweeper A minesweeper is a small warship designed to remove or detonate naval mines. Using various mechanisms intended to counter the threat posed by naval mines, minesweepers keep waterways clear for safe shipping. History The earliest known usage of ...
,
patrol boat A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval ship, naval vessel generally designed for Coastal defence and fortification, coastal defence, Border control, border security, or law ...
, hydrographic and oceanographic
survey ship A survey vessel is any type of ship or boat that is used for underwater surveys, usually to collect data for mapping or planning underwater construction or mineral extraction. It is a type of research vessel, and may be designed for the pu ...
and tender. During the
age of sail The Age of Sail is a period in European history that lasted at the latest from the mid-16th (or mid-15th) to the mid-19th centuries, in which the dominance of sailing ships in global trade and warfare culminated, particularly marked by the int ...
, the ship categories were divided into the
ship of the line A ship of the line was a type of naval warship constructed during the Age of Sail from the 17th century to the mid-19th century. The ship of the line was designed for the naval tactics in the Age of Sail, naval tactic known as the line of battl ...
, frigate, and
sloop-of-war During the 18th and 19th centuries, a sloop-of-war was a warship of the Royal Navy with a single gun deck that carried up to 18 guns. The rating system of the Royal Navy covered all vessels with 20 or more guns; thus, the term encompassed all u ...
. Naval ship names are typically prefixed by an abbreviation indicating the national navy in which they serve. For a list of the prefixes used with ship names ( HMS, USS, , etc.) see
ship prefix A ship prefix is a combination of letters, usually abbreviations, used in front of the name of a civilian or naval ship that has historically served numerous purposes, such as identifying the vessel's mode of propulsion, purpose, or ownership/na ...
. Today's warships are significantly faster than in years past, thanks to much improved propulsion systems. Also, the efficiency of the engines has improved, in terms of fuel, and of how many sailors it takes to operate them. In World War II, ships needed to refuel very often. However, today ships can go on very long journeys without refueling. Also, in World War II, the engine room needed about a dozen sailors to work the many engines, however, today, only about four or five are needed (depending on the class of the ship). Today, naval strike groups on longer missions are always followed by a range of support and replenishment ships supplying them with anything from fuel and munitions, to medical treatment and postal services. This allows strike groups and combat ships to remain at sea for several months at a time.


Boats

The term "boat" refers to small craft limited in their use by size and usually not capable of making lengthy independent voyages at sea. The old navy adage to differentiate between ships and boats is that boats are capable of being carried by ships. (Submarines by this rule are ships rather than boats, but are customarily referred to as boats reflecting their previous smaller size.) Navies use many types of boat, ranging from dinghies to landing craft. They are powered by either diesel engines, out-board gasoline engines, or waterjets. Most boats are built of aluminum, fiberglass, or steel.
Rigid-hulled inflatable boat A rigid inflatable boat (RIB), also rigid-hull inflatable boat or rigid-hulled inflatable boat (RHIB), is a lightweight but high-performance and high-capacity boat constructed with a rigid hull (watercraft), hull bottom joined to side-forming a ...
s are also used.
Patrol boat A patrol boat (also referred to as a patrol craft, patrol ship, or patrol vessel) is a relatively small naval ship, naval vessel generally designed for Coastal defence and fortification, coastal defence, Border control, border security, or law ...
s are used for patrols of coastal areas, lakes and large rivers.
Landing craft Landing craft are small and medium seagoing watercraft, such as boats and barges, used to convey a landing force (infantry and vehicles) from the sea to the shore during an amphibious assault. The term excludes landing ships, which are larger. ...
are designed to carry troops, vehicles, or cargo from ship to shore under combat conditions, to unload, to withdraw from the beach, and to return to the ship. They are rugged, with powerful engines, and usually armed. There are many types in today's navies including
hovercraft A hovercraft (: hovercraft), also known as an air-cushion vehicle or ACV, is an amphibious craft capable of travelling over land, water, mud, ice, and various other surfaces. Hovercraft use blowers to produce a large volume of air below the ...
. They will typically have a power-operated bow ramp, a cargo well and after structures that house engine rooms, pilot houses, and stowage compartments. These boats are sometimes carried by larger ships. Special operations craft are high-speed craft used for insertion and extraction of special forces personnel and some may be transportable (and deployed) by air. Boats used in non-combat roles include lifeboats, mail boats, line handling boats, buoy boats, aircraft rescue boats, torpedo retrievers, explosive ordnance disposal craft, utility boats, dive boats, targets, and work boats. Boats are also used for survey work, tending divers, and minesweeping operations. Boats for carrying cargo and personnel are sometimes known as launches, gigs, barges or shore party boats.


Units

Naval forces are typically arranged into units based on the number of ships included, a single ship being the smallest operational unit. Ships may be combined into squadrons or
flotilla A flotilla (from Spanish, meaning a small ''flota'' ( fleet) of ships), or naval flotilla, is a formation of small warships that may be part of a larger fleet. Composition A flotilla is usually composed of a homogeneous group of the same cla ...
s, which may be formed into fleets. The largest unit size may be the whole Navy or Admiralty. A
task force A task force (TF) is a unit or formation established to work on a single defined task or activity. Originally introduced by the United States Navy, the term has now caught on for general usage and is a standard part of NATO terminology. Many ...
can be assembled using ships from different fleets for an operational task.


Personnel

Despite their acceptance in many areas of naval service, female sailors were not permitted to serve on board U.S. submarines until the U.S. Navy lifted the ban in April 2010. The major reasons historically cited by the U.S. Navy were the extended duty tours and close conditions which afford almost no privacy. The United Kingdom's Royal Navy has had similar restrictions. Australia, Canada, Norway, and Spain previously opened submarine service to women sailors.


Ranks

A navy will typically have two sets of ranks, one for enlisted personnel and one for officers. Typical ranks for commissioned officers include the following, in ascending order (
Commonwealth A commonwealth is a traditional English term for a political community founded for the common good. The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the 15th century. Originally a phrase (the common-wealth ...
ranks are listed first on each line; USA ranks are listed second in those instances where they differ from Commonwealth ranks): *
Midshipman A midshipman is an officer of the lowest Military rank#Subordinate/student officer, rank in the Royal Navy, United States Navy, and many Commonwealth of Nations, Commonwealth navies. Commonwealth countries which use the rank include Royal Cana ...
/
Ensign Ensign most often refers to: * Ensign (flag), a flag flown on a vessel to indicate nationality * Ensign (rank), a navy (and former army) officer rank Ensign or The Ensign may also refer to: Places * Ensign, Alberta, Alberta, Canada * Ensign, Ka ...
/ Corvette Lieutenant * Sub Lieutenant / Lieutenant Junior Grade / Frigate Lieutenant *
Lieutenant A lieutenant ( , ; abbreviated Lt., Lt, LT, Lieut and similar) is a Junior officer, junior commissioned officer rank in the armed forces of many nations, as well as fire services, emergency medical services, Security agency, security services ...
(Commonwealth & US)/ Ship-of-the-Line Lieutenant /
Captain Lieutenant Captain lieutenant or captain-lieutenant is a military rank, used in a number of navies worldwide and formerly in the British Army. Northern Europe Denmark, Norway and Finland The same rank is used in the navies of Denmark (), Norway () and Fin ...
* Lieutenant Commander (Commonwealth & US)/
Corvette Captain Corvette captain is a rank in many European and Latin American navies which theoretically corresponds to command of a corvette (small warship). The equivalent rank is lieutenant commander in the Royal Navy and other Commonwealth navies, the U ...
*
Commander Commander (commonly abbreviated as Cmdr.) is a common naval officer rank as well as a job title in many army, armies. Commander is also used as a rank or title in other formal organizations, including several police forces. In several countri ...
(Commonwealth & US)/
Frigate Captain Frigate captain is a naval rank in the naval forces of several countries. Corvette captain lies one level below frigate captain. It is usually equivalent to the Commonwealth/US Navy rank of commander. Countries using this rank include Argenti ...
*
Captain Captain is a title, an appellative for the commanding officer of a military unit; the supreme leader or highest rank officer of a navy ship, merchant ship, aeroplane, spacecraft, or other vessel; or the commander of a port, fire or police depa ...
(Commonwealth & US)/
Ship-of-the-Line Captain Captain is the name most often given in English-speaking navies to the rank corresponding to command of the largest ships. The rank is equal to the army rank of colonel and air force rank of group captain. Equivalent ranks worldwide include ...
* Commodore / Flotilla Admiral (in US only: Rear Admiral (lower half)) *
Rear Admiral Rear admiral is a flag officer rank used by English-speaking navies. In most European navies, the equivalent rank is called counter admiral. Rear admiral is usually immediately senior to commodore and immediately below vice admiral. It is ...
(in US only: Rear Admiral (upper half)) *
Vice Admiral Vice admiral is a senior naval flag officer rank, usually equivalent to lieutenant general and air marshal. A vice admiral is typically senior to a rear admiral and junior to an admiral. Australia In the Royal Australian Navy, the rank of Vice ...
(Commonwealth & US) *
Admiral Admiral is one of the highest ranks in many navies. In the Commonwealth nations and the United States, a "full" admiral is equivalent to a "full" general in the army or the air force. Admiral is ranked above vice admiral and below admiral of ...
(Commonwealth & US) *
Admiral of the Fleet An admiral of the fleet or shortened to fleet admiral is a senior naval flag officer rank, usually equivalent to field marshal and marshal of the air force. An admiral of the fleet is typically senior to an admiral. It is also a generic ter ...
(Commonwealth) /
Fleet Admiral An admiral of the fleet or shortened to fleet admiral is a senior naval flag officer rank, usually equivalent to field marshal and marshal of the air force. An admiral of the fleet is typically senior to an admiral. It is also a generic ter ...
(US) /
Grand Admiral Grand admiral is a historic naval rank, the highest rank in the several European navies that used it. It is best known for its use in Germany as . A comparable rank in modern navies is that of admiral of the fleet. Grand admirals in individual ...
"Flag officers" include any rank that includes the word "admiral" (or commodore in services other than the US Navy), and are generally in command of a battle group, strike group or similar flotilla of ships, rather than a single ship or aspect of a ship. However, commodores can also be temporary or honorary positions. For example, during World War II, a Navy captain was assigned duty as a convoy commodore, which meant that he was still a captain, but in charge of all the merchant vessels in the convoy. The most senior rank employed by a navy will tend to vary depending on the size of a navy and whether it is wartime or peacetime, for example, few people have ever held the rank of Fleet Admiral in the U.S. Navy, the chief of the
Royal Australian Navy The Royal Australian Navy (RAN) is the navy, naval branch of the Australian Defence Force (ADF). The professional head of the RAN is Chief of Navy (Australia), Chief of Navy (CN) Vice admiral (Australia), Vice Admiral Mark Hammond (admiral), Ma ...
holds the rank of Vice Admiral, and the chief of the Irish Naval Service holds the rank of Commodore.


Naval infantry

Naval infantry, commonly known as
marines Marines (or naval infantry) are military personnel generally trained to operate on both land and sea, with a particular focus on amphibious warfare. Historically, the main tasks undertaken by marines have included Raid (military), raiding ashor ...
, are a category of infantry that form part of a state's naval forces and perform roles on land and at sea, including
amphibious operations Amphibious warfare is a type of Offensive (military), offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the opera ...
, as well as other, naval roles. They also perform other tasks, including land warfare, separate from naval operations. During the era of the
Roman empire The Roman Empire ruled the Mediterranean and much of Europe, Western Asia and North Africa. The Roman people, Romans conquered most of this during the Roman Republic, Republic, and it was ruled by emperors following Octavian's assumption of ...
, naval forces included marine
legionaries The ancient Rome, Roman legionary (in Latin ''legionarius''; : ''legionarii'') was a citizen soldier of the Roman army. These soldiers would conquer and defend the territories of ancient Rome during the Crisis of the Roman Republic, Republic and ...
for maritime boarding actions. These were troops primarily trained in land warfare, and did not need to be skilled at handling a ship. Much later during the age of sail, a component of marines served a similar role, being ship-borne soldiers who were used either during boarding actions, as sharp-shooters, or in raids along shorelines. The Spanish '' Infantería de Marina'' was formed in 1537, making it the oldest, current marine force in the world. The
British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories and Crown Dependencies. * British national identity, the characteristics of British people and culture ...
Royal Marines The Royal Marines provide the United Kingdom's amphibious warfare, amphibious special operations capable commando force, one of the :Fighting Arms of the Royal Navy, five fighting arms of the Royal Navy, a Company (military unit), company str ...
combine being both a ship-based force and also being specially trained in
commando A commando is a combatant, or operative of an elite light infantry or special operations force, specially trained for carrying out raids and operating in small teams behind enemy lines. Originally, "a commando" was a type of combat unit, as oppo ...
frogman A frogman is someone who is trained in scuba diving or swimming underwater. The term often applies more to professional rather than recreational divers, especially those working in a tactical capacity that includes military, and in some Europea ...
-style operations and tactics, operating in some cases separately from the rest of the Royal Navy. The Royal Marines also have their own
special forces Special forces or special operations forces (SOF) are military units trained to conduct special operations. NATO has defined special operations as "military activities conducted by specially designated, organized, selected, trained and equip ...
unit. In the majority of countries, the marine force is an integral part of the navy but there are variations such as the French Troupes de marine, which is actually part of the
French Army The French Army, officially known as the Land Army (, , ), is the principal Army, land warfare force of France, and the largest component of the French Armed Forces; it is responsible to the Government of France, alongside the French Navy, Fren ...
. The
United States Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines or simply the Marines, is the maritime land force service branch of the United States Department of Defense. It is responsible for conducting expeditionar ...
is a separate armed service within the United States Department of the Navy, with its own leadership structure.


Naval aviation

Naval aviation is the application of military air power by navies, whether from
warship A warship or combatant ship is a naval ship that is used for naval warfare. Usually they belong to the navy branch of the armed forces of a nation, though they have also been operated by individuals, cooperatives and corporations. As well as b ...
s that embark aircraft, or land bases. In World War I, several navies used
floatplane A floatplane is a type of seaplane with one or more slender floats mounted under the fuselage to provide buoyancy. By contrast, a flying boat uses its fuselage for buoyancy. Either type of seaplane may also have landing gear suitable for land, ...
s and
flying boat A flying boat is a type of seaplane with a hull, allowing it to land on water. It differs from a floatplane in having a fuselage that is purpose-designed for flotation, while floatplanes rely on fuselage-mounted floats for buoyancy. Though ...
s – mainly for
scouting Scouting or the Scout Movement is a youth social movement, movement which became popularly established in the first decade of the twentieth century. It follows the Scout method of informal education with an emphasis on practical outdoor activi ...
. By World War II,
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and hangar facilities for supporting, arming, deploying and recovering carrier-based aircraft, shipborne aircraft. Typically it is the ...
s could carry bomber aircraft capable of attacking naval and land targets, as well as fighter aircraft for defence. Since World War II helicopters have been embarked on smaller ships in roles such as anti-submarine warfare and transport. Some navies have also operated land-based aircraft in roles such as
maritime patrol Maritime patrol or maritime reconnaissance is the task of monitoring areas of water. Generally conducted by military and law enforcement agencies, maritime patrol is usually aimed at identifying human activities. Maritime patrol refers to active ...
and
training Training is teaching, or developing in oneself or others, any skills and knowledge or fitness that relate to specific useful competencies. Training has specific goals of improving one's capability, capacity, productivity and performance. I ...
. Naval aviation forces primarily perform naval roles at sea. However, they are also used in a variety of other roles.


See also

*
Blue-water navy A blue-water navy is a Navy, maritime force capable of operating globally, essentially across the deep waters of open oceans. While definitions of what actually constitutes such a force vary, there is a requirement for the ability to exercise Co ...
*
Coast guard A coast guard or coastguard is a Maritime Security Regimes, maritime security organization of a particular country. The term embraces wide range of responsibilities in different countries, from being a heavily armed military force with cust ...
* List of auxiliary ship classes in service *
List of countries by level of military equipment This is a list of countries by level of military equipment, including naval ships, fighter aircraft and nuclear weapons. This list is indicative only, as strict comparisons cannot accurately be made. List States marked 'TC' are widely cons ...
* List of naval battles * List of naval ship classes in service * List of navies * List of submarine classes in service *
Naval academy A naval academy provides education for prospective naval officers. List of naval academies See also

* Military academy {{Authority control Naval academies, Naval lists ...
*
Naval fleet A fleet or naval fleet is a large formation of warships – the largest formation in any navy – controlled by one leader. A fleet at sea is the direct equivalent of an army on land. Purpose In the modern sense, fleets are usually, but no ...
* Naval militia * Naval tactics *
Naval warfare Naval warfare is combat in and on the sea, the ocean, or any other battlespace involving a major body of water such as a large lake or wide river. The Military, armed forces branch designated for naval warfare is a navy. Naval operations can be ...
*
Navies of landlocked countries A landlocked navy is a naval force operated by a country that Landlocked country, does not have a coastline. While these states are unable to develop a sea-going, blue-water navy, they may still deploy armed forces on major lakes or rivers. Such ...
*
Shore patrol Shore patrol (SP) are service members who are provided to aid in security for the United States Navy, United States Coast Guard, United States Marine Corps, and the British Royal Navy while on shore.Cutler and Cutler, p 202 They are often tem ...


Notes and references


Notes


Citations


References

* *


Further reading

* Non-fiction: ** ''Combat Fleets of the World: Their Ships, Aircraft and Systems'' – Naval Institute Press. Published annually. Comprehensive. ** Braudel, Fernand, ''The Mediterranean in the Ancient World''. ** Corbett, Sir Julian, ''Some Principles of Maritime Strategy'', 1911. ** Hughes Jr., Wayne P., ''Fleet Tactics and Coastal Combat'', 1999, Naval Institute Press, . ** Kennedy, Paul. ''The Rise and Fall of British Naval Mastery''. New York: Scribner, 1976. . ** Mahan, Alfred Thayer, '' The Influence of Sea Power upon History, 1660–1783'', 1918, Boston: Little Brown. ** Marder, Arthur. ''The Anatomy of British Seapower''. New York: Octagon Books, 1940. ** Marder, Arthur. "The Influence of History on Sea Power: The Royal Navy and the Lessons of 1914–1918", ''
Pacific Historical Review The ''Pacific Historical Review'' is the official publication of the Pacific Coast Branch of the American Historical Association. It is a quarterly academic journal published by University of California Press. It was established in 1932 under foun ...
''. November 1972. ** Richmond, Herbert. ''National Policy and National Strength and other Essays''. London: Longman, Green and Co., 1928. ** Sprout, Harold and Margaret Sprout. ''Toward a New Order of Sea Power: American Naval Policy ... 1918–1922''. Princeton: Princeton University Press, 1940. ** Starr, Chester G., ''The Influence of Sea Power on Ancient History'', 1989, Oxford University Press, . ** Tangredi, Sam, "Globalization and Maritime Power", 2002 –
National Defense University National Defence (or Defense) University (or College) may refer to: :''Alphabetical by country'' University * Marshal Fahim National Defense University, Afghanistan * National Defense University (Azerbaijan) * People's Liberation Army National Defe ...
, . ** Trafalgar 200 Through the Lens, . ** Wombacher, Joerg and Joerg Felfe. (2012
United We Are Strong: An Investigation into Sense of Community among Navy Crews
'' Armed Forces & Society'', Vol. 38, No. 4. ** Woolley, Peter J. "The Role of Strategy in Great Power Decline", '' Naval War College Review''. Vol. XLIX, no. 1 (1996). . * Fiction: ** Alan Lewrie series by Dewey Lambdin **
Aubrey–Maturin series The Aubrey–Maturin series is a sequence of nautical historical novels—20 completed and one unfinished—by English author Patrick O'Brian, set during the Napoleonic Wars and centring on the friendship between Captain Jack Aubrey of the R ...
by
Patrick O'Brian Patrick O'Brian (12 December 1914 – 2 January 2000), born Richard Patrick Russ, was an English novelist and translator, best known for his Aubrey–Maturin series. These sea novels are set in the Royal Navy during the Napoleonic Wars and ...
**
Horatio Hornblower Horatio Hornblower is a fictional officer in the British Royal Navy during the Napoleonic Wars, the protagonist of a series of novels and stories by C. S. Forester. He later became the subject of films and radio and television programmes, and ...
series by C. S. Forester ** Richard Bolitho series by Alexander Kent (pseudonym of
Douglas Reeman Douglas Edward Reeman (15 October 1924 – 23 January 2017), who also used the pseudonym Alexander Kent, was a British author who wrote many historical novels about the Royal Navy, mainly set during either World War II or the Napoleonic Wars. He w ...
) **
Tom Clancy Thomas Leo Clancy Jr. (April 12, 1947 – October 1, 2013) was an American novelist. He is best known for his technically detailed espionage and military science, military-science storylines set during and after the Cold War. Seventeen of ...
, '' The Hunt for Red October'' (1984), '' Red Storm Rising'' (1986)


External links


Naval Technology
– News, projects, images and white papers on the naval industry
NOSI (Naval Open Source Intelligence)
– a library of world naval operational news

* * {{Authority control * Types of military forces