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While trenches have often been dug as defensive measures, in the pre-firearm eras, they were mainly a type of hindrance for an attacker of a fortified location, such as the moat around a castle (this is technically called a ditch).
Only with the advent of accurate firearms, and the tactics that evolved in World War I and the Crimean War, did the use of trenches as positions for the defender of a fortification become common, though the Māori of New Zealand were known to have used it earlier in their Pā fortifications in the late 19th Century. The military usage evolved very quickly in the First World War, until whole systems of extensive main trenches, backup trenches (in case the first lines were overrun) and communication trenches had been developed, often stretching dozens of kilometres along a front without interruption, and some kilometres further back from the opponents lines.
The Vietnam War was a military conflict that occurred in Vietnam, Laos, and Cambodia from 1959[1] to 30 April 1975. The war was fought between the communist North Vietnam, supported by its communist allies, and the government of South Vietnam, supported by the United States and other nations.[12]
The Viet Cong, a lightly armed South Vietnamese communist-controlled common front, largely fought a guerrilla war against anti-communist forces in the region. The North Vietnamese Army engaged in a more conventional war, at times committing large units into battle. U.S. and South Vietnamese forces relied on air superiority and overwhelming firepower to conduct search and destroy operations, involving ground forces, artillery and airstrikes.
The United States entered the war to prevent a communist takeover of South Vietnam as part of their wider strategy of containment. Military advisors arrived beginning in 1950. U.S. involvement escalated in the early 1960s and combat units were deployed beginning in 1965. Involvement peaked in 1968 at the time of the Tet Offensive.
After this, U.S. ground forces were withdrawn as part of a policy called Vietnamization. Despite Paris Peace Accords, signed by all parties in January 1973, fighting continued.
The Case-Church Amendment, passed by the U.S. Congress in response to the anti-war movement, prohibited direct U.S. military involvement after August 15, 1973. U.S. military and economic aid continued until 1975.[13] The capture of Saigon by North Vietnamese army, in April 1975, marked the end of Vietnam War. North and South Vietnam were reunified the following year.
The war exacted a huge human cost in terms of fatalities, including 3 to 4 million Vietnamese from both sides, 1.5 to 2 million Laotians and Cambodians, and 58,159 U.S. soldiers.[14]
Info Taken from Wikipedia.com
Credits to Wikipedia.com
http://en.wikipedia.org/wiki/Vietnam_War
http://en.wikipedia.org/wiki/Trench
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The truth about the Vietnam warby Supermarches3,770 views
ive been there and its amazing, ive been in tiny under ground tunnels there aswell
Bdawg981 1 month ago