USS Forster was an Edsall-class destroyer escort laid down on August 31, 1943 and launched on November 13, the same year. It was commissioned on January 25, 1944 with the hull number DE-334 and served in the US Navy for 27 years until it was decommissioned on September 25, 1971. During its activities, the ship carried a complement of 209 people on board. After the decommissioning, the ship was sold to South Vietnam where it was renamed RVNS Tran Khanh Du HQ-04 and, subsequently, to the Republic of Vietnam where it was renamed VPNS Dai KyHQ-03.
89 years old