The objective of Operation Market Time focused on preventing communist ships from infiltrating the South Vietnamese coast in order to resupply North Vietnamese Army (NVA) and Viet Cong (VC) forces. Beginning officially on 11 March 1965, Market Time featured a picket line of ships along over 1,000 miles of South Vietnamese coast including forces from the U.S. Coast Guard, the U.S. Navy, and the South Vietnamese Navy. The operation was originally placed under the control of the Vietnam Patrol Force (Task Force 71), however command shifted to the Commander, Naval Forces Vietnam on 31 July 1965 and designated as Task Force 115. Operation Market Time was originally planned to acquire 54 Swift boats, but that number increased to a total of 84 in September 1965 in order to thoroughly guard the coast of South Vietnam. These Swift boats were further separated into five groups and assigned to different areas of operation including Division 101 located at An Thoi (working alongside Coast Guard Division 11), Division 102 at Da Nang (with Coast Guard Division 12), Division 103 at Cat Lo (with Coast Guard Division 13), Division 104 based at Cam Ranh Bay and Division 105 at Qui Nhon.