Answer: He increased the number of U.S. military advisors in South Vietnam.
Step-by-step explanation:
Hi, when the Vietcong seem to be winning in South Vietnam Kennedy expanded military aid to the government of President Ngo Dinh Diem, providing training to the South Vietnamese army, and increased the number of U.S. military advisors in South Vietnam, looking forward to reach success on the US counterinsurgency objectives.
American troops were sent later on.