WORLD HISTORY

Detailed explanation-1: -January 27, 1973-U.S. troops are planned to be withdrawn from South Vietnam in 60 days due to the signing of the Paris Peace Accords. North Vietnam and Nixon also agree to withdraw troops from Cambodia and Laos.

Detailed explanation-2: -The remaining Americans escaped in a series of frantic air-and sealifts with Vietnamese friends and coworkers. A military government was instituted, and on July 2, 1976, the country was officially united as the Socialist Republic of Vietnam with its capital in Hanoi.

Detailed explanation-3: -On March 29, 1973 the last U.S. combat troops left South Vietnam, ending direct U.S. military involvement in the Vietnam War. Military advisers to the South Vietnamese Army remained, as did Marines protecting U.S. installations, and thousands of Defense Department civilians.

Detailed explanation-4: -Not only had the USA failed to stop Vietnam falling to communism, but their actions in the neighbouring countries of Laos and Cambodia had helped to bring communist governments to power there too. Many US politicians were mounting pressure to commit to peace. The policy of containment had failed in the propaganda war.

Detailed explanation-5: -Though the outcome of the war was a clear defeat for the United States, the countries surrounding Vietnam did not subsequently fall to communism, demonstrating the flawed reasoning of the domino theory. The war in Vietnam had lasting consequences for US foreign policy.