U.S. airstrikes hit enemy sites in the Parrot’s Beak border area on May 7, as South Vietnamese armored personnel carriers and rangers behind a rice paddy dike begin to advance.

U.S. airstrikes hit enemy sites in the Parrot’s Beak border area on May 7, as South Vietnamese armored personnel carriers and rangers behind a rice paddy dike begin to advance. (AP Photo/Nick Ut)

AP Photo/Nick Ut