military strategy Military strategy is a set of ideas implemented by military organizations to pursue desired strategic goals. Derived from the Greek word ''strategos'', the term strategy, when it appeared in use during the 18th century, was seen in its narrow se ...

, a choke point (or chokepoint) is a geographical feature on land such as a

valley A valley is an elongated low area often running between hills or mountains, which will typically contain a river or stream running from one end to the other. Most valleys are formed by erosion of the land surface by rivers or streams over ...

defile Defile may refer to: * To make dirty or impure * Defile (geography), in geography, a narrow pass or gorge between mountains * Defile (military), to march off in a line * The Defile, a pass between Suess Glacier and Nussbaum Riegel in Victoria ...

bridge A bridge is a structure built to span a physical obstacle (such as a body of water, valley, road, or rail) without blocking the way underneath. It is constructed for the purpose of providing passage over the obstacle, which is usually somethi ...

, or

maritime Maritime may refer to: Geography * Maritime Alps, a mountain range in the southwestern part of the Alps * Maritime Region, a region in Togo * Maritime Southeast Asia * The Maritimes, the Canadian provinces of Nova Scotia, New Brunswick, and Pr ...

passage through a critical

waterway A waterway is any navigable body of water. Broad distinctions are useful to avoid ambiguity, and disambiguation will be of varying importance depending on the nuance of the equivalent word in other languages. A first distinction is necessary ...

such as a strait, which an

armed force 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 ...

is forced to pass through in order to reach its

objective Objective may refer to: * Objective (optics), an element in a camera or microscope * ''The Objective'', a 2008 science fiction horror film * Objective pronoun, a personal pronoun that is used as a grammatical object * Objective Productions, a Brit ...

, sometimes on a substantially narrowed

front Front may refer to: Arts, entertainment, and media Films * ''The Front'' (1943 film), a 1943 Soviet drama film * '' The Front'', 1976 film Music *The Front (band), an American rock band signed to Columbia Records and active in the 1980s and e ...

and therefore greatly decreasing its

combat effectiveness Combat effectiveness is the capacity or performance of a military force to succeed in undertaking an operation, mission or objective. Determining optimal combat effectiveness is crucial in the armed forces, whether they are deployed on land, ai ...

by making it harder to bring superior numbers to bear. A choke point can allow a numerically inferior defending force to use the

terrain Terrain or relief (also topographical relief) involves the vertical and horizontal dimensions of land surface. The term bathymetry is used to describe underwater relief, while hypsometry studies terrain relative to sea level. The Latin w ...

as a

force multiplier In military science, force multiplication or a force multiplier is a factor or a combination of factors that gives personnel or weapons (or other hardware) the ability to accomplish greater feats than without it. The expected size increase req ...

to thwart or

ambush An ambush is a long-established military tactics, military tactic in which a combatant uses an advantage of concealment or the element of surprise to attack unsuspecting enemy combatants from concealed positions, such as among dense underbru ...

a much larger opponent, as the attacker cannot advance any further without first securing passage through the choke point.

Historical examples

Some historical examples of the tactical use of choke points are King

Leonidas I Leonidas I (; grc-gre, Λεωνίδας; died 19 September 480 BC) was a king of the Greek city-state of Sparta, and the 17th of the Agiad line, a dynasty which claimed descent from the mythological demigod Heracles. Leonidas I was son of King ...

's defense of the Pass of Thermopylae during an invasion led by

Xerxes I of Persia Xerxes I ( peo, 𐎧𐏁𐎹𐎠𐎼𐏁𐎠 ; grc-gre, Ξέρξης ; – August 465 BC), commonly known as Xerxes the Great, was the fourth King of Kings of the Achaemenid Empire, ruling from 486 to 465 BC. He was the son and successor of ...

; the

Battle of Stamford Bridge The Battle of Stamford Bridge ( ang, Gefeoht æt Stanfordbrycge) took place at the village of Stamford Bridge, East Riding of Yorkshire, in England, on 25 September 1066, between an English army under King Harold Godwinson and an invading N ...

in which

Harold Godwinson Harold Godwinson ( – 14 October 1066), also called Harold II, was the last crowned Anglo-Saxon English king. Harold reigned from 6 January 1066 until his death at the Battle of Hastings, fighting the Norman invaders led by William the ...

defeated

Harald Hardrada Harald Sigurdsson (; – 25 September 1066), also known as Harald III of Norway and given the epithet ''Hardrada'' (; modern no, Hardråde, roughly translated as "stern counsel" or "hard ruler") in the sagas, was King of Norway from 1046 to ...

;

William Wallace Sir William Wallace ( gd, Uilleam Uallas, ; Norman French: ; 23 August 1305) was a Scottish knight who became one of the main leaders during the First War of Scottish Independence. Along with Andrew Moray, Wallace defeated an English army at ...

's victory over the English at the

Battle of Stirling Bridge The Battle of Stirling Bridge ( gd, Blàr Drochaid Shruighlea) was a battle of the First War of Scottish Independence. On 11 September 1297, the forces of Andrew Moray and William Wallace defeated the combined English forces of John de Warenne ...

(Wallace had around 2,300 men against the English army of about 9,000 to 12,000 men and the bridge collapsed during the battle); and the

Battle of Agincourt The Battle of Agincourt ( ; french: Azincourt ) was an English victory in the Hundred Years' War. It took place on 25 October 1415 ( Saint Crispin's Day) near Azincourt, in northern France. The unexpected English victory against the numeric ...

in which

Henry V of England Henry V (16 September 1386 – 31 August 1422), also called Henry of Monmouth, was King of England and Lord of Ireland from 1413 until his death in 1422. Despite his relatively short reign, Henry's outstanding military successes in the H ...

decisively defeated the French using a small army (consisting mainly of lightly equipped

longbowmen A longbow (known as warbow in its time, in contrast to a hunting bow) is a type of tall bow that makes a fairly long draw possible. A longbow is not significantly recurved. Its limbs are relatively narrow and are circular or D-shaped in cross ...

) when the much larger force of French

heavy cavalry Heavy cavalry was a class of cavalry intended to deliver a battlefield charge and also to act as a tactical reserve; they are also often termed '' shock cavalry''. Although their equipment differed greatly depending on the region and histori ...

were forced to

charge Charge or charged may refer to: Arts, entertainment, and media Films * ''Charge, Zero Emissions/Maximum Speed'', a 2011 documentary Music * ''Charge'' (David Ford album) * ''Charge'' (Machel Montano album) * ''Charge!!'', an album by The Aqua ...

at the Englishmen through a narrow muddy gap in the

Azincourt Azincourt (), historically known in English as Agincourt ( ), is a commune in the Pas-de-Calais department in northern France. It is situated north-west of Saint-Pol-sur-Ternoise on the D71 road between Hesdin and Fruges. The Late Medieva ...

Woods. The many archipelagos of the Caribbean offered several maritime choke points that attracted

pirates 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 ...

and

buccaneers Buccaneers were a kind of privateers or free sailors particular to the Caribbean Sea during the 17th and 18th centuries. First established on northern Hispaniola as early as 1625, their heyday was from the Restoration in 1660 until about 1688 ...

during the height of their activities in the 17th and early 18th century. The

Spanish treasure fleet The Spanish treasure fleet, or West Indies Fleet ( es, Flota de Indias, also called silver fleet or plate fleet; from the es, label=Spanish, plata meaning "silver"), was a convoy system of sea routes organized by the Spanish Empire from 1566 to ...

s leaving the Americas would have to pass through those waters to pick up the strong, prevailing westerly winds that would take them back to Spain across the

North Atlantic The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the "Old World" of Africa, Europe and ...

. Some choke points, with important locations in parentheses: *

Strait of Hormuz The Strait of Hormuz ( fa, تنگه هرمز ''Tangeh-ye Hormoz'' ar, مَضيق هُرمُز ''Maḍīq Hurmuz'') is a strait between the Persian Gulf and the Gulf of Oman. It provides the only sea passage from the Persian Gulf to the ...

between

Oman Oman ( ; ar, عُمَان ' ), officially the Sultanate of Oman ( ar, سلْطنةُ عُمان ), is an Arabian country located in southwestern Asia. It is situated on the southeastern coast of the Arabian Peninsula, and spans the mouth of ...

and

Iran Iran, officially the Islamic Republic of Iran, and also called Persia, is a country located in Western Asia. It is bordered by Iraq and Turkey to the west, by Azerbaijan and Armenia to the northwest, by the Caspian Sea and Turkm ...

at the entrance to the

Persian Gulf The Persian Gulf ( fa, خلیج فارس, translit=xalij-e fârs, lit=Gulf of Fars, ), sometimes called the ( ar, اَلْخَلِيْجُ ٱلْعَرَبِيُّ, Al-Khalīj al-ˁArabī), is a mediterranean sea in Western Asia. The bo ...

Bab-el-Mandeb The Bab-el-Mandeb (Arabic: , , ) is a strait between Yemen on the Arabian Peninsula, and Djibouti and Eritrea in the Horn of Africa. It connects the Red Sea to the Gulf of Aden. Name The strait derives its name from the dangers attend ...

passage from the

Arabian Sea The Arabian Sea ( ar, اَلْبَحرْ ٱلْعَرَبِيُّ, Al-Bahr al-ˁArabī) is a region of the northern Indian Ocean bounded on the north by Pakistan, Iran and the Gulf of Oman, on the west by the Gulf of Aden, Guardafui Channel ...

to the

Red Sea The Red Sea ( ar, البحر الأحمر - بحر القلزم, translit=Modern: al-Baḥr al-ʾAḥmar, Medieval: Baḥr al-Qulzum; or ; Coptic: ⲫⲓⲟⲙ ⲛ̀ϩⲁϩ ''Phiom Enhah'' or ⲫⲓⲟⲙ ⲛ̀ϣⲁⲣⲓ ''Phiom ǹšari''; ...

(

Yemen Yemen (; ar, ٱلْيَمَن, al-Yaman), officially the Republic of Yemen,, ) is a country in Western Asia. It is situated on the southern end of the Arabian Peninsula, and borders Saudi Arabia to the north and Oman to the northeast an ...

and

Socotra Socotra or Soqotra (; ar, سُقُطْرَىٰ ; so, Suqadara) is an island of the Republic of Yemen in the Indian Ocean, under the ''de facto'' control of the UAE-backed Southern Transitional Council, a secessionist participant in Yemen� ...

) *

Strait of Malacca The Strait of Malacca is a narrow stretch of water, 500 mi (800 km) long and from 40 to 155 mi (65–250 km) wide, between the Malay Peninsula (Peninsular Malaysia) to the northeast and the Indonesian island of Sumatra to the southwest, conn ...

between

Malaysia Malaysia ( ; ) is a country in Southeast Asia. The federation, federal constitutional monarchy consists of States and federal territories of Malaysia, thirteen states and three federal territories, separated by the South China Sea into two r ...

and Sumatra (

Indonesia