Final answer:
During the Vietnam War, President Nixon implemented a strategy known as Vietnamization to gradually withdraw U.S. troops and replace them with South Vietnamese soldiers.
Step-by-step explanation:
The subject of this question is History.
During the Vietnam War, President Nixon implemented a strategy known as Vietnamization. This strategy aimed to gradually withdraw U.S. troops from the conflict and replace them with South Vietnamese soldiers, allowing the South Vietnamese to take on a more active combat role in the war. The goal was to shift the responsibility for fighting the war to the South Vietnamese forces, with the hope that they could eventually defeat the North Vietnamese with the support of U.S. military aid.