Vietnam
Laos.
Cuba
Vietnam
it is speard country
There was no country called "Vietnam" during the war. There was a country called North Vietnam and another country called South Vietnam, which one are you asking about?
It was a civil war of sorts, with North Vietnam fighting to unify the country with the help of allies China and the Soviet Union - and South Vietnam, defended by western and Asian allies in the South East Asia Treaty Organization. (SEATO)
Indochina Another answer: Laos A+ answer: Vietnam
Vietnam obviously.
There was a Vietnam War, and it is also a country bordering China
Just before the Vietnam Conflict, Vietnam was a colony under French rule. Before that time, China had control over much of Eastern and Southeastern Asia.
After the war, there was a reunification of Vietnam. So the answer is "One country".