In 1973 the US withdrew it's combat forces from South Vietnam, but in 1975 the US evacuated it's remaining US personnel from South Vietnam; as the war ended on 30 April 1975 as a Northern victory over the South.
America began reducing its troops since 1969, followed on Nixon's "Vietnamization" policy. However, not until Paris Peace Accords, signed in 1973, that U.S. military forces withdrew completely from South Vietnam. They still kept a number of military advisers and personnel till the fall of Saigon regime in 1975 though.
Yes, the withdrawal of American forces from South Vietnam in 1973 significantly contributed to the eventual fall of South Vietnam to North Vietnamese forces in 1975. The absence of U.S. military support weakened the South Vietnamese government and military, which struggled to fend off the advancing North Vietnamese troops. This culminated in the reunification of Vietnam under communist control, marking the end of the Vietnam War.
US military men were exchanging gunfire with communist forces from 1955 to 1975.
Vietnam has never had a democratic government, so nothing has ever happened to this non-existent entity. If you are referring to the Republic of Vietnam (often called South Vietnam), which was a regime in the south of Vietnam from 1954-1975, this country was not a democracy. Although it has the word "Republic" in its name, it was really a state ruled by a strongman who was deeply beholden to US interests. As for what happened to this country, when the US withdrew military forces from Vietnam in 1973, the North Vietnamese Army overran the defenses of South Vietnam and conquered the country, bringing Vietnam into united Communist rule.
All American troops, except for approximately 16,000 military advisors, withdrew from Vietnam on November 30, 1972 ending all combat operations.
US Forces withdrew in March of 1973; South Vietnam fell to Communist North Vietnam in April 1975.
Veitnam War
The Americans withdrew their soldiers in 1975. Leaving Saigon to be run by the North Vietnamese.
The Vietnam War.
Socialist Union of Popular Forces was created in 1975.
Singapore Armed Forces FC was created in 1975.
The North of Vietnam won the war. Also north Vietnam And I will answer all your questions. OK!!!!!!