There were several dating from 1952 to 1974.
Kennedy, Johnson, Nixon, Ford
He introduced the first US Military Advisers to the country, intelligence support and Air America.
The two presidents during the Vietnam War were JFK, and LBJ.
About 2.1 million American served in Vietnam.
Over 3,403,100 US Servicemen served in Southeast Asia during the Vietnam War; of those men, 2,594,000 served in country (South Vietnam).
Ngô Đình Diệm was assassinated during the Vietnam War in a military coup d'etat of South Vietnam.John F. Kennedy was assassinated during the Vietnam War by a US citizen.
There has not been a U.S President that served in Vietnam.
The Presidents who served during the Vietnam War are usually Eisenhower to Ford.
JFK
During the Vietnam War, Presidents Kennedy and then Johnson were democrats.
He introduced the first US Military Advisers to the country, intelligence support and Air America.
Approximately 2,594,000 US Servicemen served "in country" during the Vietnam War.
Truman had Korea; Eisenhower initiated Vietnam.
Reagan and Johnson
The two presidents during the Vietnam War were JFK, and LBJ.
During the Vietnam War, Presidents Kennedy and then Johnson were democrats.
You probably mean who were the presidents of RVN during the war; Diem then later Thieu.
About 2.1 million American served in Vietnam.