Australia had nothing to do with the Vietnam War.
See website: Moratoriums to end the war in Vietnam.
The North won.
Vietnam War
The Vietnam War ended on April 30th, 1975.
The Vietnam war ended on the thirtieth of April in 1975.
The North won the war, that ended it.
The president of South Vietnam at the end of the war was Nguyen Van Thieu.
1974
The Vietnam War ended in 1975, when North and South Vietnam become one country, Vietnam.
April 30th 1975 Source: I live in Vietnam
Cambodia