sentences:  Participation in the increasing American involvement in the Vietnam War, however, highlighted the minesweeper's lengthy WestPac deployment.From the mid-1960s, the ship commenced a regular schedule of deployments on "Operation Market Time" patrol stations in the coastal waters off South Vietnam, on patrol and interdiction to cut off the seaborne flow of supplies to the communist Viet Cong forces inside South Vietnam.During one such cruise in January 1967, while being diverted from an "Operation Market Time" patrol to conduct classified operations in the Gulf of Tonkin, the ship made the national news when she was rammed by a swordfish.