Vietnam War starts due to the abusive US exterior politics. Vietnam regime turned the country to the communism, spoiling all the US economic and political interests in the region. Therefore defending South Vietnam against the "tyranny of communism" US invaded North Vietnam.
1955 South Vietnam.
See website: Vietnam War
1963
See website: Vietnam War
Australia never fought Vietnam.
1869
They never heard of Vietnam before.
What year did the vietnam war start
Quan
By infiltration.
Communists did.
1955.