Thomas Lindsay, Owensboro, Ky., 28th Malaria Control Detachment, demonstrating to Pvt. John W. Hancock, Humboldt, Tenn., and Pvt. Steve H. Lewis, Oakland, Md., the use of a hand rotary blower to drift a cloud of DDT dust over stagnant water and…
Top photograph: French officers holding maneuvers in Vietnamese rice paddies in 1939; bottom photograph: troops and U.S. supplied helicopters in Vietnam in 1964