Countering Viet Cong actions to seize control of villages in South Vietnam’s Central Highlands, […] (Countering Viet Cong actions to seize control of villages in South Vietnam’s Central Highlands, U.S. Special Forces provided weapons and military training to anti-communist Montagnards, an ethnic group of various tribes, including these recruits from the Rhade tribe learning how to handle rifles in a Highlands village in 1963. / Claude Jacoby, Ullstein Bild via Getty Images)

Countering Viet Cong actions to seize control of villages in South Vietnam’s Central Highlands, U.S. Special Forces provided weapons and military training to anti-communist Montagnards, an ethnic group of various tribes, including these recruits from the Rhade tribe learning how to handle rifles in a Highlands village in 1963. / Claude Jacoby, Ullstein Bild via Getty Images