Because communist North Vietnam was trying to conquer the Republic of South Vietnam (a non-communist country).
The trigger was the Tonkin Gulf Incident.
About one half of the American people.
It transformed the guerrilla war in South Vietnam into a conventional war in both South Vietnam and a war directly against North Vietnam.
The North Vietnamese regard it as a war of liberation. The Americans saw it as a war against Communism. For them is was mostly a defensive and ´containment´ war, trying to keep the North Vietnamese from conquering South Vietnam.
Communist guerrillas living in South Vietnam. The NVA were regular army (regular soldiers) living in North Vietnam whom marched south into South Vietnam to wage war. VC-didn't wear uniforms (generally) NVA-wore uniforms
Gulf of Tonkin Resolution
North Vietnam.
because it was north Vietnam against south Vietnam
Against Communist North Vietnam's take over of the Republic of South Vietnam.
North Vietnam/VC against the US/allies.
North Korea
North Vietnam started the war against South Vietnam; the US went to the aid of the South.
About one half of the American people.
North Vietnam (capital was Hanoi).
it caused president johnson to send more troops to vietnam
The war was fought against COMMUNISM; North Vietnam was communist & trying to take over SOUTH Vietnam which was NOT communist.
It transformed the guerrilla war in South Vietnam into a conventional war in both South Vietnam and a war directly against North Vietnam.
Its war against North and South Vietnam!