All 3 Uses

Vietnam War
in
The Hunt for Red October
(Auto-generated)

He remembered a study conducted during the Vietnam War in which carrier pilots had been fitted with portable electrocardiographs to monitor stress, and it had surprised a lot of people that the most stressful time for carrier pilots wasn't while they were being shot at—it was while they were landing, particularly at night.†
Chpt 7.

Vietnam War = war between North and South Vietnam and their allies (1954-1975)
A Phantom pilot during the Vietnam War, he had written a book, Paddystrikes, on the conduct of the air campaigns.†
Chpt 7. *
Built towards the end of the Vietnam War, she had first seen service clearing mines off Haiphong harbor.†
Chpt 14.

Definitions:

(1) (Vietnam War)
long Cold War conflict in Vietnam, where France and then the U.S. backed South Vietnam against communist North Vietnam, ending in a communist victory (1950s–1975)
(2) (meaning too rare to warrant focus)