In which year did Marines land in South Vietnam?

The year 1965 is significant because it marks the official commitment of U.S. Marines to combat operations in South Vietnam. Initially, limited numbers of Marines were deployed in 1963 to protect installations and advisory personnel, but it was not until 1965 that a substantial force was sent to support the South Vietnamese government against the escalating threat of the North Vietnamese and Viet Cong forces. The landing at Da Nang in March 1965 represented a pivotal moment in the Vietnam War, as it escalated U.S. involvement and marked the beginning of sustained combat operations by American forces in the region.

Subsequent years witnessed further escalation and complexities in the conflict, but the initial landing in 1965 is recognized as the definitive entry point of American ground troops into a more direct and comprehensive military engagement in Vietnam.