reconnaissance in the Arctic and along the northern Soviet coast. Later missions were Project LEOPARD along the Chukchi Peninsula, followed by Projects RICKRACK, STONEWORK, and COVERALLS. In 1946, the US possessed only nine atomic bombs and twenty-seven B-29s capable at any one time of delivering them. Furthermore, it was later determined that an attack by the 509th Composite Bomb Group during the 1947 to 1948 time frame would have required at least five to six days just to transfer custody of the bombs from United States Atomic Energy Commission (AEC) sites to SAC and deploy the aircraft and weapons to forward operating bases before launching nuclear strikes. Postwar budget and personnel cuts had an insidious effect on SAC as its Deputy Commander, Major General Clements McMullen, implemented mandated force reductions. This continued to wear down SAC as a command and morale plummeted. As a result, by the end of 1947, only two of SAC's eleven groups were combat ready. After the 1948 Bikini Atoll nuclear tests, the "Half Moon" Joint Emergency War Plan developed in May 1948 proposed dropping 50 atomic bombs on twenty Soviet cities, with President Harry S. Truman approving "Half Moon" during the June 1948 Berlin Blockade, (Truman sent B-29s to Europe in July). SAC also ordered special ELINT RB-29s to detect improved Soviet radars and, in cooperation with the 51st Air Force Base Unit, SAC also monitored radioactive fallout from Soviet atomic testing on Novaya Zemlya. In terms of overall Air Force basing and infrastructure, SAC continued to acquire an ever-increasing share of USAF infrastructure and the USAF associated budget. In 1947, before the USAF was established as an independent service, construction commenced on Limestone AAF, Maine (later renamed Loring AFB), a new SAC installation specifically designed to accommodate the B-36 Peacemaker. Fort Dix AAF, New Jersey (later McGuire AFB); Spokane AAF, Washington (later Fairchild AFB); and Wendover Field, Utah (later Wendover AFB) were also transferred to SAC between 30 April and 1 September 1947. Following the establishment of the USAF as a separate service, SAC bases in the United States consisted of: Castle Air Force Base, California Patrick Air Force Base, Florida Cannon Air Force Base, New Mexico Carswell Air Force Base, Texas Davis-Monthan Air Force Base, Arizona Ellsworth Air Force Base, South Dakota MacDill Air Force Base, Florida Mountain Home Air Force Base, Idaho Kirtland Air Force Base, New Mexico Loring Air Force Base,