the Vietnam People's Navy of the now-unified Socialist Republic of Vietnam as the patrol vessel PRVSN Pham Ngu Lao (HQ-01). Modifications When captured, Pham Ngu Lao was armed with the American weaponry that South Vietnam had relied upon. The Vietnam Peoples Navy appears to have retained its major components, such as the 5-inch 38-caliber (127-millimeter) gun and 81-mm mortars. In the mid-1980s, Soviet-made 37-mm and 25-mm guns were installed for close-in defense, as were two Soviet-made SS-N-2 (NATO reporting name "Styx") anti-ship cruise missile launchers and two Soviet-made quad SA-N-5 (NATO reporting name "Grail") surface-to-air-missile launchers. However, all the missile launchers are thought to have been removed in the 1990s. Service history On 10 January 1979, Pham Ngu Lao joined the Vietnam People′s Navy patrol boats , , , and in an action off Ream, Cambodia, that resulted in the sinking of two Cambodian warships. Pham Ngu Lao'''s status in the secretive Vietnam People's Navy is murky, but she was thought to be in active service into the 1990s and perhaps as recently as 2000. By the early-to-mid-2000s she apparently was inactive and may have been decommissioned. Notes References Department of the Navy: Naval Historical Center: Online Library of Selected Images: U.S. Navy Ships: USS Absecon (AVP-23), 1943–1949 NavSource Online: Service Ship Photo Archive AVP-23 Absecon WAVP-374 / WHEC-374 Absecon United States Coast Guard Historian Office: Absecon WHEC-374 Radio call sign: NBNP United States Coast Guard Historian's Office: Mackinac, 1949 WHEC-371 United States Coast Guard Historian's Office: McCulloch, 1946 WAVP / WHEC-386 The Inventory of VNNs Battle Ships Part 2 Gardiner, Robert. Conway's All the Worlds Fighting Ships 1947–1982, Part I: The Western Powers. Annapolis, Maryland: Naval Institute Press, 1983. . Gray, Randal, Ed. Conways All the Worlds Fighting Ships 1947–1982 Part II: The Warsaw Pact and Non-Aligned Nations. Annapolis, Maryland: Naval Institute Press, 1983. . Moore, John, Captain, RN, FRGS, Ed. Janes Fighting Ships 1973–1974. London: Janes Yearbooks, 1973. No ISBN number. Moore, John, Captain, RN, Ed. Janes Fighting Ships 1980–1981. New York: Janes Publishing Inc., 1980. . Saunders, Stephen, Commodore, RN, Ed. Janes Fighting Ships, 107th Edition, 2004–2005. Alexandria, Virginia: Janes Information Group, 2004. . Saunders, Stephen, Commodore, RN, Ed. Janes Fighting Ships, 111th Edition, 2008–2009. Alexandria, Virginia: Janes Information Group, 2004. . Sharpe, Richard, Captain, RN, Ed. Janes Fighting Ships, 97th Edition, 1994–1995''. Alexandria, Virginia: Janes Information Group, 1994. . World War II auxiliary ships of the