Answer:
- North Vietnam attacked Saigon.
- Communism gained control.
- South Vietnam surrendered to North Vietnam.
Step-by-step explanation:
The Vietnam war ended on the 30th of April 1975 when the capital of South Vietnam, Saigon, fell to the North Vietnamese forces who had earlier launched a full scale attack against the capital with the U.S. having stopped supporting the South Vietnamese with manpower.
With the fall of Saigon, South Vietnam formally surrender to North Vietnam and the Communist government of North Vietnam then united the entire country under one single Communist government.