 Coast Guard Squadron Three was tasked to operate in conjunction with U.S. Navy forces in Operation Market Time, the interdiction of North Vietnamese coastal arms and munitions traffic along the coastline of South Vietnam during the Vietnam War.The squadrons other Vietnam War duties included naval gun fire support for ground forces, resupplying Coast Guard and Navy patrol boats and search-and-rescue operations.The cutters departed Pearl Harbor on 26 April 1967 and reported to Commander, United States Seventh Fleet, for Market Time duty on 4 May 1967.