The Viet Minh were involved in the effort to expel the Japanese occupiers and the return of the Frech Colonial authority.
The Vietnam War was part of the cold war. To prevent Communist North Vietnam from taking over the Republic of South Vietnam.
The Soviet Union (USSR) supplied North Vietnam, and the US fought for South Vietnam.
Primary combatants were US & North Vietnam; especially the air war over the North.
The United States did get involved in the Vietnam war because of communism in Vietnam.
The countries that were actually "physically" involved, and were bombed or had US aircraft crash into them, whether they were "officially" in the war or not, were: Lao's, Cambodia, North Vietnam and South Vietnam.
The north won the war. No need for agreements.
North Vietnam won the war.
The UK was not involved in the Vietnam war - it was the USA!
IT WAS CONSIDERED ILLEGAL BECAUSE SOUTH VIETNAM NEVER DECLARED WAR ON NORTH VIETNAM AND VISA VERSA IT WAS A CIVIL WAR AND THE U.S. SHOULD NEVER GOT INVOLVED IN THEIR OPINION
The war in Vietnam was similar to the US Civil War because the war involved North Korea versus South Korea.
See the website on "Vietnam". But be advised, there was NO "North Vietnam" after the war ended...Just VIETNAM.
It was both a civil war and a surrogate war with China and the USSR supporting North Vietnam and the US, South Korea, Australia, New Zeland, Thailand and the Phillipenes supporting South Vietnam.