The Vietnam War was fought in the rainforests of Southeast Asia. Such conditions were quite unfamiliar to the US troops, such as the Marines seen here slogging through a flooded jungle trail.
The photographer, Terry Fincher of the Daily Express, went to Vietnam five times during the war. Along with other journalists, he slogged through the rain, dug trenches for protection, and ducked from automatic weapons fire and artillery barrages. His photographic record of the war earned him the British photographer of the year award for four years.