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300px, Castillo San Felipe de Barajas in Cartagena de Indias, Colombia, an example of an Early Modern coastal defense Coastal defence (or defense) and coastal fortification are measures taken to provide protection against
military A military, also known collectively as armed forces, is a heavily armed, highly organized force primarily intended for warfare. It is typically authorized and maintained by a sovereign state, with its members identifiable by their distinct ...
attack at or near a
coast The coast, also known as the coastline or seashore, is defined as the area where land meets the ocean, or as a line that forms the boundary between the land and the coastline. The Earth has around of coastline. Coasts are important zones in n ...
line (or other
shore A shore or a shoreline is the fringe of land at the edge of a large body of water, such as an ocean, sea, or lake. In physical oceanography, a shore is the wider fringe that is geologically modified by the action of the body of water past a ...
line), for example,
fortification A fortification is a military construction or building designed for the defense of territories in warfare, and is also used to establish rule in a region during peacetime. The term is derived from Latin ''fortis'' ("strong") and ''facere ...
s and
coastal artillery Coastal artillery is the branch of the armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications. From the Middle Ages until World War II, coastal artillery and naval artillery in the form o ...
. Because an invading enemy normally requires 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 H ...
or
harbour A harbor (American English), harbour (British English; see spelling differences), or haven is a sheltered body of water where ships, boats, and barges can be docked. The term ''harbor'' is often used interchangeably with ''port'', which is ...
to sustain operations, such defences are usually concentrated around such facilities, or places where such facilities could be constructed. Coastal artillery fortifications generally followed the development of land fortifications, usually incorporating land defences; sometimes separate land defence forts were built to protect coastal forts. Through the middle 19th century, coastal forts could be
bastion fort A bastion fort or ''trace italienne'' (a phrase derived from non-standard French, literally meaning ''Italian outline'') is a fortification in a style that evolved during the early modern period of gunpowder when the cannon came to domin ...
s,
star fort A bastion fort or ''trace italienne'' (a phrase derived from non-standard French, literally meaning ''Italian outline'') is a fortification in a style that evolved during the early modern period of gunpowder when the cannon came to domin ...
s,
polygonal fort A polygonal fort is a type of fortification originating in France in the late 18th century and fully developed in Germany in the first half of the 19th century. Unlike earlier forts, polygonal forts had no bastions, which had proved to be vulnerabl ...
s, or
sea fort 300px, Castillo San Felipe de Barajas in Cartagena de Indias, Colombia, an example of an Early Modern coastal defense Coastal defence (or defense) and coastal fortification are measures taken to provide protection against military attack at or ...
s, the first three types often with detached gun batteries called "water batteries". Coastal defence weapons throughout history were heavy
naval gun Naval artillery is artillery mounted on a warship, originally used only for naval warfare and then subsequently used for shore bombardment and anti-aircraft roles. The term generally refers to tube-launched projectile-firing weapons and excludes ...
s or weapons based on them, often supplemented by lighter weapons. In the late 19th century separate batteries of coastal artillery replaced forts in some countries; in some areas these became widely separated geographically through the mid-20th century as weapon ranges increased. The amount of landward defence provided began to vary by country from the late 19th century; by 1900 new US forts almost totally neglected these defences.
Boom Boom may refer to: Objects * Boom (containment), a temporary floating barrier used to contain an oil spill * Boom (navigational barrier), an obstacle used to control or block marine navigation * Boom (sailing), a sailboat part * Boom (windsurfin ...
s were also usually part of a protected harbor's defences. In the middle 19th century underwater minefields and later
controlled mines A controlled mine was a circuit fired weapon used in coastal defenses with ancestry going back to 1805 when Robert Fulton termed his underwater explosive device a torpedo: Robert Fulton invented the word torpedo to describe his underwater explosiv ...
were often used, or stored in peacetime to be available in wartime. With the rise of the
submarine A submarine (or sub) is a watercraft capable of independent operation underwater. It differs from a submersible, which has more limited underwater capability. The term is also sometimes used historically or colloquially to refer to remotely op ...
threat at the beginning of the 20th century,
anti-submarine net An anti-submarine net or anti-submarine boom is a boom placed across the mouth of a harbour or a strait for protection against submarines. Examples of anti-submarine nets * Lake Macquarie anti-submarine boom * Indicator net * Naval operations in ...
s were used extensively, usually added to boom defences, with major warships often being equipped with them (to allow rapid deployment once the ship was anchored or moored) through early World War I. In World War I
railway artillery A railway gun, also called a railroad gun, is a large artillery piece, often surplus naval artillery, mounted on, transported by, and fired from a specially designed railway wagon. Many countries have built railway guns, but the best-known are ...
emerged and soon became part of coastal artillery in some countries; with railway artillery in coast defence some type of revolving mount had to be provided to allow tracking of fast-moving targets. In littoral warfare, coastal defence counteracts
naval A navy, naval force, 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 operations and related functions. It inclu ...
offence, such as
naval artillery Naval artillery is artillery mounted on a warship, originally used only for naval warfare and then subsequently used for shore bombardment and anti-aircraft roles. The term generally refers to tube-launched projectile-firing weapons and exclude ...
, naval infantry (
marines Marines, or naval infantry, are typically a military force trained to operate in littoral zones in support of naval operations. Historically, tasks undertaken by marines have included helping maintain discipline and order aboard the ship (refl ...
), or both.


History

Rather than the beach assault of modern
amphibious operations 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 conducte ...
, seaborne assaults of the classical and medieval age more often took the form of raiders sailing up river and landing well inland of the coast. Prior to the invention of naval artillery that could sink hostile ships, the most that coastal defence could do was act as an early warning system, that could alert local naval or ground forces of the impending attack. For example, in the late Roman period the
Saxon Shore The Saxon Shore ( la, litus Saxonicum) was a military command of the late Roman Empire, consisting of a series of fortifications on both sides of the Channel. It was established in the late 3rd century and was led by the " Count of the Saxon Sh ...
was a system of forts at the mouths of navigable rivers, and watch towers along the coast of
Britannia Britannia () is the national personification of Britain as a helmeted female warrior holding a trident and shield. An image first used in classical antiquity, the Latin ''Britannia'' was the name variously applied to the British Isles, Grea ...
and
Gaul Gaul ( la, Gallia) was a region of Western Europe first described by the Romans. It was inhabited by Celtic and Aquitani tribes, encompassing present-day France, Belgium, Luxembourg, most of Switzerland, parts of Northern Italy (only during ...
. Later in Anglo-Saxon
Wessex la, Regnum Occidentalium Saxonum , conventional_long_name = Kingdom of the West Saxons , common_name = Wessex , image_map = Southern British Isles 9th century.svg , map_caption = S ...
protection against
Viking Vikings ; non, víkingr is the modern name given to seafaring people originally from Scandinavia (present-day Denmark, Norway and Sweden), who from the late 8th to the late 11th centuries raided, pirated, traded and se ...
raiders took the form of coast watchers whose duty was to alert the local militia; the navy, which would attempt to intercept the raider's ships or failing that to destroy them after they had beached, against smaller raiding forces the threat of losing their ships, and their way home with their loot was often enough to force them to curtail their attack. In addition there was a system of fortified towns,
burgh A burgh is an autonomous municipal corporation in Scotland and Northern England, usually a city, town, or toun in Scots. This type of administrative division existed from the 12th century, when King David I created the first royal burghs. Bur ...
s, that were positioned at
choke point In military strategy, a choke point (or chokepoint) is a geographical feature on land such as a valley, defile or bridge, or maritime passage through a critical waterway such as a strait, which an armed force is forced to pass through in order ...
s along navigable rivers to prevent raiders from sailing inland.


Sea forts

Sea forts are completely surrounded by water – if not permanently, then at least at high tide (i.e. they are
tidal island A tidal island is a piece of land that is connected to the mainland by a natural or man-made causeway that is exposed at low tide and submerged at high tide. Because of the mystique surrounding tidal islands, many of them have been sites of ...
s). Unlike most coastal fortifications, which are on the coast, sea forts are not. Instead, they are off the coast on islands, artificial islands, or are specially built structures. Some sea forts, such as Fort Denison or
Fort Sumter Fort Sumter is a sea fort built on an artificial island protecting Charleston, South Carolina from naval invasion. Its origin dates to the War of 1812 when the British invaded Washington by sea. It was still incomplete in 1861 when the Battle ...
, are within harbours in proximity to the coast, but most are at some distance off the coast. Some, such as for example Bréhon Tower or
Fort Drum Fort Drum is a U.S. Army military reservation and a census-designated place (CDP) in Jefferson County, on the northern border of New York, United States. The population of the CDP portion of the base was 12,955 at the 2010 census. It is home ...
completely occupy small islands; others, such as
Flakfortet Flakfortet, meaning sand-shoal fortress, is a sea fort located on the artificially built island of ''Saltholmrev'', in the Øresund between Copenhagen and Saltholm. The island and fort are simply known as ''Flakfortet''; the name of the island; ' ...
and
Pampus Pampus () is an artificial island and late 19th-century sea fort located in the IJmeer near Amsterdam. Pampus now belongs to the municipality of Gooise Meren and is open to visitors. Together with the artillery battery on the lighthouse isl ...
, are on artificial islands built up on shoals. Fort Louvois is on a built-up island, from the shore, and connected to it by a causeway that high tide completely submerses. The most elaborate sea fort is
Murud-Janjira Murud-Janjira () is the local name of a famous fort and tourist spot situated on an island just off the coastal town/city of Murud, in the Raigad district of Maharashtra, India. Origins of the name The word Janjira is a corruption of the a ...
, which is so extensive that one might truly call it a sea fortress. The most recent sea forts were the Maunsell Forts, which the British built during World War II as anti-aircraft platforms. One type consisted of a concrete pontoon barge on which stood two cylindrical towers on top of which was the gun platform mounting. They were laid down in dry dock and assembled as complete units. They were then fitted out before being towed out and sunk onto their sand bank positions in 1942. The other type consisted of seven interconnected steel platforms built on stilts. Five platforms carried guns arranged in a semicircle around the sixth platform, which contained the control centre and accommodation. The seventh platform, set further out than the gun towers, was the searchlight tower.


Coastal defence and fortification by country


Chile

300px, Cannons of the Valdivian_Fort_System_in_Niebla,_Chile,_an_example_of_a_coastal_defense..html" ;"title="Niebla,_Chile.html" ;"title="Valdivian Fort System in
Valdivian_Fort_System_in_Niebla,_Chile,_an_example_of_a_coastal_defense.">Niebla,_Chile.html"_;"title="Valdivian_Fort_System_in_Niebla,_Chile">Valdivian_Fort_System_in_Niebla,_Chile,_an_example_of_a_coastal_defense. In_Colonial_Chile.html" "title="Niebla, Chile">Valdivian Fort System in Niebla, Chile, an example of a coastal defense.">Niebla,_Chile.html" ;"title="Valdivian Fort System in Niebla, Chile">Valdivian Fort System in Niebla, Chile, an example of a coastal defense. In Colonial Chile">Colonial times The ''Colonial Times'' was a newspaper in what is now the Australian state of Tasmania. It was established as the ''Colonial Times, and Tasmanian Advertiser'' in 1825 in Hobart, Van Diemen's Land Van Diemen's Land was the colon ...
the Spanish Empire diverted significant resources to fortify the Chilean coast as consequence of Dutch and English raids. The Dutch occupation of Valdivia in 1643 caused great alarm among Spanish authorities and triggered the construction of the
Valdivian Fort System The Fort System of Valdivia ( es, Sistema de fuertes de Valdivia) is a series of Spanish colonial fortifications at Corral Bay, Valdivia and Cruces River established to protect the city of Valdivia, in southern Chile. During the period of Span ...
that begun in 1645.Robbert Koc
The Dutch in Chili
at coloniavoyage.com
Kris E. Lan
Pillaging the Empire: Piracy in the Americas, 1500–1750
1998, pages 88–92
As consequence of the
Seven Years' War The Seven Years' War (1756–1763) was a global conflict that involved most of the European Great Powers, and was fought primarily in Europe, the Americas, and Asia-Pacific. Other concurrent conflicts include the French and Indian War (1754 ...
the Valdivian Fort System was updated and reinforced from 1764 onwards. Other vulnerable localities of colonial Chile such as
Chiloé Archipelago The Chiloé Archipelago ( es, Archipiélago de Chiloé, , ) is a group of islands lying off the coast of Chile, in the Los Lagos Region. It is separated from mainland Chile by the Chacao Channel in the north, the Sea of Chiloé in the east and t ...
, Concepción,
Juan Fernández Islands The Juan Fernández Islands ( es, Archipiélago Juan Fernández) are a sparsely inhabited series of islands in the South Pacific Ocean reliant on tourism and fishing. Situated off the coast of Chile, they are composed of three main volcanic ...
and
Valparaíso Valparaíso (; ) is a major city, seaport, naval base, and educational centre in the commune of Valparaíso, Chile. "Greater Valparaíso" is the second largest metropolitan area in the country. Valparaíso is located about northwest of Santiago ...
were also made ready for an eventual English attack. Inspired in the recommendations of former
governor A governor is an administrative leader and head of a polity or political region, ranking under the head of state and in some cases, such as governors-general, as the head of state's official representative. Depending on the type of political ...
Santa María the Spanish founded the "city-fort" of
Ancud Ancud () is a city in southern Chile located in the northernmost part of the island and province of Chiloé, in Los Lagos Region. It is the second largest city of Chiloé Archipelago after Castro. The city was established in 1768 to function as ...
in 1768 and separated Chiloé from the
Captaincy General of Chile The Captaincy General of Chile (''Capitanía General de Chile'' ) or Governorate of Chile (known colloquially and unofficially as the Kingdom of Chile), was a territory of the Spanish Empire from 1541 to 1817 that was, for most of its existenc ...
into a direct dependency of the Viceroyalty of Peru.


China

China first established formal coastal defences during the early
Ming dynasty The Ming dynasty (), officially the Great Ming, was an Dynasties in Chinese history, imperial dynasty of China, ruling from 1368 to 1644 following the collapse of the Mongol Empire, Mongol-led Yuan dynasty. The Ming dynasty was the last ort ...
(14th century) to protect against attacks by
pirate 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 other valuable goods. Those who conduct acts of piracy are called pirates, v ...
s (
wokou ''Wokou'' (; Japanese: ''Wakō''; Korean: 왜구 ''Waegu''), which literally translates to "Japanese pirates" or "dwarf pirates", were pirates who raided the coastlines of China and Korea from the 13th century to the 16th century.
). Coastal defences were maintained through both the Ming dynasty and the
Qing dynasty The Qing dynasty ( ), officially the Great Qing,, was a Manchu-led imperial dynasty of China and the last orthodox dynasty in Chinese history. It emerged from the Later Jin dynasty founded by the Jianzhou Jurchens, a Tungusic-speak ...
that followed, protecting the coast against pirates, and against the Portuguese and other
Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...
an powers that sought to impose their will on China. Subsequently, the European powers built their own coastal defences to protect the various colonial enclaves that they established along the Chinese coast. One such, a fort built by 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. ** Britishness, the British identity and common culture * British English, ...
commanding the
Lei Yue Mun Lei Yue Mun is a short channel in Hong Kong. It lies between Junk Bay and Victoria Harbour, separating Kowloon and Hong Kong Island. The channel is an important passage for the city, forming the eastern entrance of Victoria Harbour. The land ...
channel between
Hong Kong Island Hong Kong Island is an island in the southern part of Hong Kong. Known colloquially and on road signs simply as Hong Kong, the island has a population of 1,289,500 and its population density is 16,390/km2, . The island had a population of a ...
and the mainland, has been converted into the
Hong Kong Museum of Coastal Defence The Hong Kong Museum of Coastal Defence is a museum in Hong Kong, located in a former coastal defence fort overlooking the Lei Yue Mun channel, near Shau Kei Wan on Hong Kong Island. The fort was built by the British in 1887, intended to def ...
. This tells the story of coastal defence along the South China coast from the Ming dynasty onwards.


Malta

The islands of
Malta Malta ( , , ), officially the Republic of Malta ( mt, Repubblika ta' Malta ), is an island country in the Mediterranean Sea. It consists of an archipelago, between Italy and Libya, and is often considered a part of Southern Europe. It lies ...
,
Gozo Gozo (, ), Maltese: ''Għawdex'' () and in antiquity known as Gaulos ( xpu, 𐤂𐤅𐤋, ; grc, Γαῦλος, Gaúlos), is an island in the Maltese archipelago in the Mediterranean Sea. The island is part of the Republic of Malta. After ...
and
Comino Comino ( mt, Kemmuna) is a small island of the Maltese archipelago between the islands of Malta and Gozo in the Mediterranean Sea, measuring in area. Named after the cumin seed, the island has a permanent population of only two residents and ...
all have some form of coastal fortification. The area around the
Grand Harbour The Grand Harbour ( mt, il-Port il-Kbir; it, Porto Grande), also known as the Port of Valletta, is a natural harbour on the island of Malta. It has been substantially modified over the years with extensive docks ( Malta Dockyard), wharves, a ...
was possibly first fortified during Arab rule, and by the 13th century, a castle known as the Castrum Maris was built in
Birgu Birgu ( mt, Il-Birgu , it, Vittoriosa), also known by its title Città Vittoriosa ("''Victorious City''"), is an old fortified city on the south side of the Grand Harbour in the South Eastern Region of Malta. The city occupies a promontory of ...
to protect the harbour. The Maltese islands were given to Order of Saint John in 1530, who settled in
Birgu Birgu ( mt, Il-Birgu , it, Vittoriosa), also known by its title Città Vittoriosa ("''Victorious City''"), is an old fortified city on the south side of the Grand Harbour in the South Eastern Region of Malta. The city occupies a promontory of ...
and rebuilt the Castrum Maris as Fort Saint Angelo. In the 1550s,
Fort Saint Elmo Fort Saint Elmo ( mt, Forti Sant'Iermu) is a star fort in Valletta, Malta. It stands on the seaward shore of the Sciberras Peninsula that divides Marsamxett Harbour from Grand Harbour, and commands the entrances to both harbours along with Fort ...
and
Fort Saint Michael Fort Saint Michael ( mt, Forti San Mikiel) was a small fort in the land front of the city of Senglea, Malta. It was originally built in the 1552 and it played a significant role in the Great Siege of Malta of 1565. Following the siege, it was r ...
were built, and walls surrounded the coastal cities of Birgu and
Senglea Senglea ( mt, L-Isla ), also known by its title Città Invicta (or Civitas Invicta), is a fortified city in the South Eastern Region of Malta. It is one of the Three Cities in the Grand Harbour area, the other two being Cospicua and Vittorios ...
. In 1565, the
Great Siege of Malta The Great Siege of Malta ( Maltese: ''L-Assedju l-Kbir'') occurred in 1565 when the Ottoman Empire attempted to conquer the island of Malta, then held by the Knights Hospitaller. The siege lasted nearly four months, from 18 May to 13 September ...
reduced many of these coastal fortifications to rubble, but after the siege they were rebuilt. The fortified city of
Valletta Valletta (, mt, il-Belt Valletta, ) is an administrative unit and capital of Malta. Located on the main island, between Marsamxett Harbour to the west and the Grand Harbour to the east, its population within administrative limits in 2014 ...
was built on the Sciberras Peninsula, and further modifications were made to the fortifications over the years. The harbour area was strengthened even more by the building of the
Floriana Lines The Floriana Lines ( mt, Is-Swar tal-Furjana) are a line of fortifications in Floriana, Malta, which surround the fortifications of Valletta and form the capital city's outer defences. Construction of the lines began in 1636 and they were nam ...
,
Santa Margherita Lines The Santa Margherita Lines ( mt, Is-Swar ta' Santa Margerita), also known as the Firenzuola Lines ( mt, Is-Swar ta' Firenzuola), are a line of fortifications in Cospicua, Malta. They were built in the 17th and 18th centuries to protect the land ...
,
Cottonera Lines The Cottonera Lines ( mt, Is-Swar tal-Kottonera), also known as the Valperga Lines ( mt, Is-Swar ta' Valperga), are a line of fortifications in Bormla and Birgu, Malta. They were built in the 17th and 18th centuries on higher ground and further ...
and
Fort Ricasoli Fort Ricasoli ( mt, Forti Rikażli) is a bastioned fort in Kalkara, Malta, which was built by the Order of Saint John between 1670 and 1698. The fort occupies a promontory known as Gallows' Point and the north shore of Rinella Bay, commanding th ...
in the 17th century and
Fort Manoel Fort Manoel ( mt, Forti Manoel or ''Fortizza Manoel'') is a star fort on Manoel Island in Gżira, Malta. It was built in the 18th century by the Order of Saint John, during the reign of Grand Master António Manoel de Vilhena, after whom it ...
and
Fort Tigné Fort Tigné ( mt, Il-Forti Tigné - Il-Fortizza ta' Tigné) is a polygonal fort in Tigné Point, Sliema, Malta. It was built by the Order of Saint John between 1793 and 1795 to protect the entrance to Marsamxett Harbour, and it is one of the ...
in the nearby
Marsamxett Harbour Marsamxett Harbour (), historically also referred to as Marsamuscetto, is a natural harbour on the island of Malta. It is located to the north of the larger Grand Harbour. The harbour is generally more dedicated to leisure use than the Grand H ...
in the 18th century. The Order also built
Fort Chambray Fort Chambray or Fort Chambrai ( mt, Forti Xambrè) is a bastioned fort located in the precincts of Għajnsielem, on the island of Gozo, Malta. It was built in the mid-18th century by the Order of Saint John, in an area known as Ras it-Tafal, b ...
near Mġarr Harbour in Gozo. In the early 15th century, a number of watch posts had been established around Malta's coastline. In the early 17th century, the Order began to strengthen the coastal fortifications outside the harbour area, by building
watchtowers A watchtower or watch tower is a type of fortification used in many parts of the world. It differs from a regular tower in that its primary use is military and from a turret in that it is usually a freestanding structure. Its main purpose is to ...
. The first of these was Garzes Tower, which was built in 1605. The Wignacourt, Lascaris and
De Redin towers The De Redin Towers ( mt, Torrijiet ta' De Redin) are a series of small coastal watchtowers built in Malta by the Order of Saint John between 1658 and 1659. Thirteen towers were built around the coast of mainland Malta, eight of which still surv ...
were built over the course of the 17th century. The last coastal watchtower to be built was
Isopu Tower Sopu Tower ( mt, Torri ta' Sopu), also known as Isopu Tower, San Blas Tower or ''Torre Nuova'', is a small watchtower situated on the cliff between San Blas and Daħlet Qorrot in Nadur, Gozo, Malta. Isopu Tower was the last watchtower to be bui ...
in 1667. Between 1605 and 1667, a total of 31 towers were built, of which 22 survive today (with another 3 in ruins). From 1714 onwards, about 52
batteries Battery most often refers to: * Electric battery, a device that provides electrical power * Battery (crime), a crime involving unlawful physical contact Battery may also refer to: Energy source *Automotive battery, a device to provide power t ...
and
redoubt A redoubt (historically redout) is a fort or fort system usually consisting of an enclosed defensive emplacement outside a larger fort, usually relying on earthworks, although some are constructed of stone or brick. It is meant to protect soldi ...
s, along with several entrenchments, were built around the coasts of Malta and Gozo. Many of these have been destroyed, but a few examples still survive. After the British took Malta in 1800, they modified the Order's defences in the harbour area to keep up with new technology. Malta itself,
Gibraltar ) , anthem = " God Save the King" , song = "Gibraltar Anthem" , image_map = Gibraltar location in Europe.svg , map_alt = Location of Gibraltar in Europe , map_caption = United Kingdom shown in pale green , mapsize = , image_map2 = Gibr ...
,
Bermuda ) , anthem = "God Save the King" , song_type = National song , song = "Hail to Bermuda" , image_map = , map_caption = , image_map2 = , mapsize2 = , map_caption2 = , subdivision_type = Sovereign state , subdivision_name = , es ...
, and
Halifax, Nova Scotia Halifax is the capital and largest municipality of the Canadian province of Nova Scotia, and the largest municipality in Atlantic Canada. As of the 2021 Census, the municipal population was 439,819, with 348,634 people in its urban area. Th ...
were designated
Imperial fortress Imperial fortress was the designation given in the British Empire to four colonies that were located in strategic positions from each of which Royal Navy squadrons could control the surrounding regions and, between them, much of the planet. His ...
es. The Corradino Lines were built in the 1870s to protect the Grand Harbour from landward attacks. Between 1872 and 1912, many forts and batteries were built around the coastline. The first of these was
Sliema Point Battery Sliema Point Battery ( mt, Batterija tal-Ponta ta' Tas-Sliema), also known as Fort Sliema ( mt, Il-Fortizza ta' Tas-Sliema), is an artillery battery in Sliema, Malta. It was built by the British between 1872 and 1876. The battery stands on the pe ...
, built to protect the northern approach to the Grand Harbour. A chain of fortifications, including Fort Delimara and Fort Benghisa, was also built to protect
Marsaxlokk Marsaxlokk () is a small, traditional fishing village in the South Eastern Region of Malta. It has a harbour, and is a tourist attraction known for its views, fishermen and history. As at March 2014, the village had a population of 3,534. The ...
Harbour. From 1935 to the 1940s, the British built many pillboxes in Malta for defence in case of an Italian invasion.


New Zealand

The coastline of
New Zealand New Zealand ( mi, Aotearoa ) is an island country in the southwestern Pacific Ocean. It consists of two main landmasses—the North Island () and the South Island ()—and over 700 smaller islands. It is the sixth-largest island coun ...
was fortified in two main waves. The first wave occurred around 1885 and was a response to fears of an attack by
Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-ei ...
. The second wave occurred during
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the World War II by country, vast majority of the world's countries—including all of the great power ...
and was due to fears of invasion by the
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
ese. The
fortifications A fortification is a military construction or building designed for the defense of territories in warfare, and is also used to establish rule in a region during peacetime. The term is derived from Latin ''fortis'' ("strong") and ''face ...
were built from
British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...
designs adapted to New Zealand conditions. These installations typically included gun emplacements, pill boxes, fire command or
observation post An observation post (commonly abbreviated OP), temporary or fixed, is a position from which soldiers can watch enemy movements, to warn of approaching soldiers (such as in trench warfare), or to direct fire. In strict military terminology, an ...
s,
camouflage Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see, or by disguising them as something else. Examples include the leopard's spotted coat, the b ...
strategies, underground
bunker A bunker is a defensive military fortification designed to protect people and valued materials from falling bombs, artillery, or other attacks. Bunkers are almost always underground, in contrast to blockhouses which are mostly above ground. T ...
s, sometimes with interconnected tunnels, containing
magazines A magazine is a periodical publication, generally published on a regular schedule (often weekly or monthly), containing a variety of content. They are generally financed by advertising, purchase price, prepaid subscriptions, or by a combination ...
, supply and plotting rooms and protected engine rooms supplying power to the
gun turret A gun turret (or simply turret) is a mounting platform from which weapons can be fired that affords protection, visibility and ability to turn and aim. A modern gun turret is generally a rotatable weapon mount that houses the crew or mechanis ...
s and
searchlight A searchlight (or spotlight) is an apparatus that combines an extremely luminosity, bright source (traditionally a carbon arc lamp) with a mirrored parabolic reflector to project a powerful beam of light of approximately parallel rays in a part ...
s.


Taiwan

Taiwan has several coastal fortifications, with some, such as Fort Zeelandia or Anping Castle dating to the time of the
Dutch East India Company The United East India Company ( nl, Verenigde Oostindische Compagnie, the VOC) was a chartered company established on the 20th March 1602 by the States General of the Netherlands amalgamating existing companies into the first joint-stock ...
. Others, such as
Cihou Fort Cihou Fort or Cihou Battery () is a historic fort in Cijin District, Kaohsiung, Taiwan, formerly guarding northern entrance to Kaohsiung Harbor. History The first fortifications were built in 1720 when Taiwan was ruled by the Manchu-led Qing ...
,
Eternal Golden Castle The Eternal Golden Castle (), alternatively but less well known as Erkunshen Battery (), is a defensive castle in Anping District, Tainan, Taiwan. History The castle was built in 1874 and completed on 1876 by the famous Qing official Shen Bao ...
, Hobe Fort, date more to the end of the 19th century. The Uhrshawan Battery dates primarily to the first half of the 19th century. It actually underwent bombardment during the
Sino-French War The Sino-French War (, french: Guerre franco-chinoise, vi, Chiến tranh Pháp-Thanh), also known as the Tonkin War and Tonquin War, was a limited conflict fought from August 1884 to April 1885. There was no declaration of war. The Chinese arm ...
.


United States

The defence of its coasts was a major concern for the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country Continental United States, primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., ...
from its independence. Prior to the
American Revolution The American Revolution was an ideological and political revolution that occurred in British America between 1765 and 1791. The Americans in the Thirteen Colonies formed independent states that defeated the British in the American Revoluti ...
many coastal fortifications already dotted the Atlantic coast, as protection from pirate raids and foreign incursions. The Revolutionary War led to the construction of many additional fortifications, mostly comprising simple earthworks erected to meet specific threats. The prospect of war with European powers in the 1790s led to a national programme of fortification building spanning seventy years in three phases, known as the First, Second and Third Systems. By the time of the
American Civil War The American Civil War (April 12, 1861 – May 26, 1865; also known by Names of the American Civil War, other names) was a civil war in the United States. It was fought between the Union (American Civil War), Union ("the North") and t ...
, advances in
armour Armour (British English) or armor (American English; see spelling differences) is a covering used to protect an object, individual, or vehicle from physical injury or damage, especially direct contact weapons or projectiles during combat, or f ...
and
weapon A weapon, arm or armament is any implement or device that can be used to deter, threaten, inflict physical damage, harm, or kill. Weapons are used to increase the efficacy and efficiency of activities such as hunting, crime, law enforcement, s ...
s had made
masonry Masonry is the building of structures from individual units, which are often laid in and bound together by mortar; the term ''masonry'' can also refer to the units themselves. The common materials of masonry construction are bricks, building ...
forts obsolete, and the combatants discovered that their
steamship A steamship, often referred to as a steamer, is a type of steam-powered vessel, typically ocean-faring and seaworthy, that is propelled by one or more steam engines that typically move (turn) propellers or paddlewheels. The first steamship ...
s and
ironclad warship An ironclad is a steam engine, steam-propelled warship protected by Wrought iron, iron or steel iron armor, armor plates, constructed from 1859 to the early 1890s. The ironclad was developed as a result of the vulnerability of wooden warships ...
s could penetrate Third System defences with acceptable losses. In 1885 US President
Grover Cleveland Stephen Grover Cleveland (March 18, 1837June 24, 1908) was an American lawyer and politician who served as the 22nd and 24th president of the United States from 1885 to 1889 and from 1893 to 1897. Cleveland is the only president in American ...
appointed the Endicott Board, whose recommendations would lead to a large-scale modernization programme of harbour and coastal defences in the United States, especially the construction of well dispersed, open topped
reinforced concrete Reinforced concrete (RC), also called reinforced cement concrete (RCC) and ferroconcrete, is a composite material in which concrete's relatively low ultimate tensile strength, tensile strength and ductility are compensated for by the inclusion ...
emplacements protected by sloped earthworks. Many of these featured
disappearing guns A disappearing gun, a gun mounted on a ''disappearing carriage'', is an obsolete type of artillery which enabled a gun to hide from direct fire and observation. The overwhelming majority of carriage designs enabled the gun to rotate back ...
, which sat protected behind the walls, but could be raised to fire. Underwater mine fields were a critical component of the defence, and smaller guns were also employed to protect the mine fields from minesweeping vessels. Defences of a given harbor were initially designated artillery districts, redesignated as coast defense commands in 1913 and as harbor defense commands in 1924. In 1901 the
Artillery Corps Artillery is a class of heavy military ranged weapons that launch 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, ...
was divided into field artillery and coast artillery units, and in 1907 the
United States Army Coast Artillery Corps The U.S. Army Coast Artillery Corps (CAC) was an administrative corps responsible for coastal, harbor, and anti-aircraft defense of the United States and its possessions between 1901 and 1950. The CAC also operated heavy and railway artillery ...
was created to operate these defences. The development of
military aviation Military aviation comprises military aircraft and other flying machines for the purposes of conducting or enabling aerial warfare, including national airlift ( air cargo) capacity to provide logistical supply to forces stationed in a war thea ...
rendered these open topped emplacements vulnerable to air attack. Therefore, the next, and last, generation of coastal artillery was mounted under thick concrete shields covered with vegetation to make them virtually invisible from above. In anticipation of a conflict with
Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the n ...
, most of the limited funds available between 1933 and 1938 were spent on the Pacific coast. In 1939–40 the threat of war in Europe prompted larger appropriations and the resumption of work along the Atlantic coast. Under a major program developed in the wake of the
Fall of France The Battle of France (french: bataille de France) (10 May – 25 June 1940), also known as the Western Campaign ('), the French Campaign (german: Frankreichfeldzug, ) and the Fall of France, was the German invasion of France during the Second World ...
in 1940, a near-total replacement of previous coast defenses was implemented, centered on 16-inch guns in new
casemate A casemate is a fortified gun emplacement or armored structure from which guns are fired, in a fortification, warship, or armoured fighting vehicle.Webster's New Collegiate Dictionary When referring to antiquity, the term "casemate wall" me ...
d batteries. These were supplemented by 6-inch and 90 mm guns, also in new installations. In WW2 the U.S. Coast Guard would patrol the shores of the United States during the war. Some patrolled on horseback with mounted beach patrols. On 13 June 1942 Seaman 2nd Class John Cullen, patrolling the beach in
Amagansett, New York Amagansett is a census-designated place that roughly corresponds to the hamlet by the same name in the Town of East Hampton in Suffolk County, New York, United States, on the South Shore of Long Island. As of the 2010 United States Census, t ...
, discovered the first landing of German saboteurs in Operation Pastorius. Cullen was the first American who actually came in contact with the enemy on the shores of the United States during the war and his report led to the capture of the German sabotage team. For this, Cullen received the
Legion of Merit The Legion of Merit (LOM) is a military award of the United States Armed Forces that is given for exceptionally meritorious conduct in the performance of outstanding services and achievements. The decoration is issued to members of the eight u ...
.


United Kingdom

The walls around coastal cities, such as
Southampton Southampton () is a port city in the ceremonial county of Hampshire in southern England. It is located approximately south-west of London and west of Portsmouth. The city forms part of the South Hampshire built-up area, which also covers Po ...
, had evolved from simpler Norman fortifications by the start of the 13th century. Later,
King Edward I Edward I (17/18 June 1239 – 7 July 1307), also known as Edward Longshanks and the Hammer of the Scots, was King of England and Lord of Ireland from 1272 to 1307. Concurrently, he ruled the duchies of Aquitaine and Gascony as a vassal o ...
was a prolific castle builder and sites such as
Conwy Castle Conwy Castle ( cy, Castell Conwy; ) is a fortification in Conwy, located in North Wales. It was built by Edward I, during his conquest of Wales, between 1283 and 1287. Constructed as part of a wider project to create the walled town of Conw ...
, built 1283 to 1289, defend river approaches as well as the surrounding land. Built 1539 to 1544, the Device Forts are a series of artillery fortifications built for
Henry VIII Henry VIII (28 June 149128 January 1547) was King of England from 22 April 1509 until his death in 1547. Henry is best known for his six marriages, and for his efforts to have his first marriage (to Catherine of Aragon) annulled. His disa ...
to defend the southern coast of England. Between 1804 and 1812 the British authorities built a chain of towers known as
Martello Tower Martello towers, sometimes known simply as Martellos, are small defensive forts that were built across the British Empire during the 19th century, from the time of the French Revolutionary Wars onwards. Most were coastal forts. They stand u ...
s to defend the south and east coast of England, Ireland,
Jersey Jersey ( , ; nrf, Jèrri, label= Jèrriais ), officially the Bailiwick of Jersey (french: Bailliage de Jersey, links=no; Jèrriais: ), is an island country and self-governing Crown Dependency near the coast of north-west France. It is the ...
and
Guernsey Guernsey (; Guernésiais: ''Guernési''; french: Guernesey) is an island in the English Channel off the coast of Normandy that is part of the Bailiwick of Guernsey, a British Crown Dependency. It is the second largest of the Channel Islands ...
against possible invasion from
France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ...
. This type of tower was also used elsewhere in the British Empire and in the United States. In the early Victorian era,
Alderney Alderney (; french: Aurigny ; Auregnais: ) is the northernmost of the inhabited Channel Islands. It is part of the Bailiwick of Guernsey, a British Crown Dependencies, Crown dependency. It is long and wide. The island's area is , making i ...
was strongly fortified to provide a massive anchorage for the British Navy before France became an ally of Britain in the
Crimean War The Crimean War, , was fought from October 1853 to February 1856 between Russia and an ultimately victorious alliance of the Ottoman Empire, France, the United Kingdom and Piedmont-Sardinia. Geopolitical causes of the war included the ...
, even so plans changed slowly and the
Palmerston Forts The Palmerston Forts are a group of forts and associated structures around the coasts of the United Kingdom and Ireland. The forts were built during the Victorian period on the recommendations of the 1860 Royal Commission on the Defence of the ...
, a group of forts and associated structures were built during the Victorian period on the recommendations of the 1860
Royal Commission on the Defence of the United Kingdom The Royal Commission on the Defence of the United Kingdom was a committee formed in 1859 to enquire into the ability of the United Kingdom to defend itself against an attempted invasion by a foreign power, and to advise the British Government on ...
, following concerns about the strength of the French Navy. In 1865 Lieutenant Arthur Campbell Walker, of the
School of Musketry The Small Arms School Corps (SASC) is a small corps of the British Army, established in 1853 by Lord Hardinge. Its personnel provide advice and instruction to infantry weapon trainers throughout the army, in order to maintain proficiency in th ...
advocated the use of
armoured train An armoured train is a railway train protected with armour. Armoured trains usually include railway wagons armed with artillery, machine guns and autocannons. Some also had slits used to fire small arms from the inside of the train, a facili ...
s on "an iron high-road running parallel with that other 'silent highway', the source of all our greatness, the ocean, our time-honoured 'moat and circumvallation'" During the
First World War World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
the British Admiralty designed eight towers code named
M-N MN may refer to: Places * Mongolia (ISO 3166-1 country code) * Montenegro (former ISO 3166 country code) * Monaco (FIPS 10-4 country code) * Minnesota, US (postal abbreviation) * Manipur, a state in northeast India * Province of Mantua, or of Ma ...
that were to be built and positioned in the
Straits of Dover The Strait of Dover or Dover Strait (french: Pas de Calais - ''Strait of Calais''), is the strait at the narrowest part of the English Channel, marking the boundary between the Channel and the North Sea, separating Great Britain from continen ...
to protect allied merchant shipping from German
U-boat U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare ro ...
s.
Nab Tower The Nab Tower was a tower planned for anti-submarine protection in the Solent in World War I. It was sunk over the Nab rocks east of the Isle of Wight to replace a lightship after the war, and is a well-known landmark for sailors as it marks ...
is still in situ. The Maunsell Forts were small fortified towers, primarily for
anti-aircraft Anti-aircraft warfare, counter-air or air defence forces is the battlespace response to aerial warfare, defined by NATO as "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It includes surface based ...
guns, built in the
Thames The River Thames ( ), known alternatively in parts as the River Isis, is a river that flows through southern England including London. At , it is the longest river entirely in England and the second-longest in the United Kingdom, after the R ...
and
Mersey The River Mersey () is in North West England. Its name derives from Old English and means "boundary river", possibly referring to its having been a border between the ancient kingdoms of Mercia and Northumbria. For centuries it has formed part ...
estuaries during the
Second World War World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposi ...
. With the advent of missile technology coastal forts became obsolete. Britain's coastal forts were therefore decommissioned in 1956 and the units manning them disbanded.


Russian Federation

Russia Federation developed A-222E Bereg-E 130mm coastal mobile artillery system,
K-300P Bastion-P The K-300P ''Bastion-P'' (NATO reporting name SS-C-5 Stooge) is a Russian mobile coastal defence missile system. The system was developed together with the Belarusian company '' Tekhnosoyuzproekt''. Design The main role of the Bastion-P is to eng ...
coastal defence system and Bal-E coastal missile complex with
Kh-35 The Zvezda Kh-35 (russian: Х-35 , AS-20 'Kayak') is a Soviet turbojet subsonic cruise anti-ship missile. The missile can be launched from helicopters, surface ships and coastal defence batteries with the help of a rocket booster, in which c ...
/Kh-35E missiles.


See also

*
Coastal artillery Coastal artillery is the branch of the armed forces concerned with operating anti-ship artillery or fixed gun batteries in coastal fortifications. From the Middle Ages until World War II, coastal artillery and naval artillery in the form o ...
* Coastal defences of Australia during World War II *
Middelgrundsfortet Middelgrundsfortet or Fort Middelgrund, known as Ungdomsøen (The Youth Island) since 2015, is a sea fort located on an artificial island in the Øresund between Copenhagen and Malmö. The fortress is constructed at a point where the seabed is 7 m ...
* Peter the Great's Naval Fortress * Chain of the
Golden Horn The Golden Horn ( tr, Altın Boynuz or ''Haliç''; grc, Χρυσόκερας, ''Chrysókeras''; la, Sinus Ceratinus) is a major urban waterway and the primary inlet of the Bosphorus in Istanbul, Turkey. As a natural estuary that connects with t ...
*
List of coastal fortifications of the United States The United States and the colonies that preceded it built numerous coastal defenses to defend major cities, ports and straits from the colonial era through World War II. Some listed were built by other nations and are now on United States territo ...


References

{{DEFAULTSORT:Coastal Defence And Fortification