Yes. In fact both countries had combat troops helping South Vietnam during the Vietnam War.
US allies were South Korea, Australia, New Zealand, Thailand, Philippines, and the Republic of South Vietnam.
US allies were: Australia, New Zealand, Philippines, Thailand, S. Korea, and S. VN. USA and Australia were allies because of the SEATO and ANZUS agreement.
The Soviet Union and China were two significant allies of North Vietnam during the Vietnam War. The war lasted from 1955 to 1975.
Australia, New Zealand, Thailand, South Korea and the Philippenes.
south Korea, united nations, Australia
Australian troops were fighting in Vietnam as allies of South Vietnam, along with those of the US, South Korea, and New Zealand. Militarily, each of the allies fulfilled different roles and employed different approaches and tactics. See the Web Link to the left for further information.
Australia, New Zealand, Thailand, South Korea, Philippines (Plus the US & Republic of South VN).
Communist NORTH Vietnam (Supplied by Red China/Soviet Union) verses the Republic of South Vietnam and it's free allies; US, Australia, New Zealand, Philippines, South Korea, and Thailand.
US, New Zealand, Australia, South Korea, South Vietnam, Thailand, Philippines.
ROK (Republic of South Korea); Philippines, Thailand, US, New Zealand, Australia, South Vietnam.
The US, Australia, New Zealand, Thailand, Philippines, South Vietnam, and South Korea.
US, Australia, New Zealand, Philippines, South Korea, South Vietnam, Thailand verses NORTH VIETNAM (supplied by Communist China/USSR) & their southern guerrilla allies (the Viet Cong).