What did President Johnson use as a justification for escalating the war in Vietnam?

an attack on a U.S. warship by North Vietnamese forces

the invasion of Cambodia by North Vietnam

the entry into the war by China on the side of North Vietnam

the invasion of South Vietnam by Chinese troops

Respuesta :

Answer:

The Vietnam War was a long, costly and divisive conflict that pitted the ... Opposition to the war in the United States bitterly divided Americans, even after President Richard Nixon ... During World War II, Japanese forces invaded Vietnam.

Explanation: