organization. Other OPNAV divisions created were Plans (OP-31), Combat Intelligence (OP-32), Operations (OP-33), and Anti-submarine Warfare (OP-35) within the Chief of Naval Operations. Wright organized OP-34 into four sections, and working with his sister divisions, Wright directed the development of a host of manuals on tactical doctrine based upon experience from World War II. Wright involved civilian think tanks, such as the Operation Evaluation Group (OEG), in projects undertaken by OP-34. CNO Fleet Admiral Chester W. Nimitz appointed Wright to chair the U.S. Navy's Air Defense Committee to help improve fleet air defenses. Wright also succeeded Rear Admiral Walter DeLaney as the chairman of the Joint Army-Navy Assessment Committee (JANAC), an inter-service agency set up in 1943 to analyze and assess Japanese naval and merchant marine shipping losses caused by U.S. and Allied forces during World War II. Commander Amphibious Forces U.S. Atlantic Fleet On November 24, 1948, Wright assumed command of Amphibious Forces U.S. Atlantic Fleet (COMPHIBLANT), a position that he held through November 1, 1950. Based at the Norfolk Naval Station, Wright would be responsible for three major subordinate commands, Amphibious Group Two, Amphibious Group Four and the Little Creek Naval Amphibious Base. COMPHIBLANT also included Amphibious Training, an Amphibious Air Control Group, a Naval Beach Group, a Detached Group, and a Mediterranean Group. Wright's flagship was , an Adirondack-class amphibious force command ship. The most significant accomplishment during Wright's tour of duty as COMPHIBLANT was PORTREX, a multi-service amphibious assault exercise held from February 25 to March 11, 1950. PORTREX was the largest peacetime amphibious exercise up to that time and it was staged to evaluate joint doctrine for combined operations, test new equipment under simulated combat conditions and provide training for the defense of the Caribbean. Over 65,000 men and 160 ships were involved, and it was climaxed by a combined amphibious and airborne assault on Vieques Island, a first in military history. The success of PORTREX offered a prelude for future amphibious operations, including the landings at Inchon during the Korean War. Jerauld Wright received his third star, effective September 14, 1950, at the conclusion of his tour of duty as COMPHIBLANT. Standing Group – North Atlantic Treaty Organization Wright served as the deputy U.S. representative to Standing Group (SG) of the newly formed North Atlantic Treaty Organization (NATO), serving from November 1950 to February 1952. The Standing Group was the standing planning organization under