Presidents Eisenhower, Kennedy, Johnson, Nixon, and Ford supported South Vietnam. The Soviet and Red Chinese presidents supported their ally (with equipment)...North Vietnam.
i believe three Kennedy, Johnson, Nixon
During the Vietnam War, Presidents Kennedy and then Johnson were democrats.
JFK
There has not been a U.S President that served in Vietnam.
America entered the Vietnam war to stop the spread of Communism
Truman had Korea; Eisenhower initiated Vietnam.
The Presidents who served during the Vietnam War are usually Eisenhower to Ford.
Presidents Johnson and Nixon
All the US presidents that served before 1956 or after April 1975.
Eisenhower, Kennedy, Johnson, Nixon and Ford.
They allowed it to escelate, and they often micro-managed it.