was followed by SAC's first Convair B-36 Peacemaker bomber arriving at Kirtland AFB, New Mexico in September 1948. In November 1948, LeMay had SAC's headquarters and its command post moved from Andrews AFB, Maryland to Offutt AFB, Nebraska. At Offutt, the command moved into the "A Building", a three-story facility that had previously been used by the Glenn L. Martin Company during World War II. Concurrent with the establishment of this new headquarters facility, Lemay also increased SAC Radar Bomb Scoring (RBS) runs the same year to 12,084. SAC also enhanced its organic fighter escort capability by initiating replacement of its World War II vintage piston-engine F-51D Mustang and F-82E Twin Mustang fighter aircraft with F-84G Thunderjets. In January 1949, SAC conducted simulated raids on Wright-Patterson AFB, Ohio. Assessments of these simulated raids by "...LeMay's entire command...were appalling", despite the SAC deputy commander, Major General McMullen, having instructed all bomber units to improve their effectiveness. To motivate crews and improve operational effectiveness command-wide, SAC established a competition, the first so-called "Bomb Comp" in 1948. Winners of this inaugural event were the 43rd Bombardment Group (unit) and, for aircrew award, a B-29 team from the 509th Bombardment Group. Given its global operating environment, SAC also opened its own survival school at Camp Carson, Colorado in 1949, later moving this school to Stead AFB, Nevada in 1952 before transferring the school to the Air Training Command in 1954. SAC also created Emergency War Plan 1–49 (EWP 1–49), which outlined the means for delivering 133 atomic bombs, "...the entire stockpile...in a single massive attack..." on 70 Soviet cities over a 30-day period. The first Soviet atomic bomb test occurred on 29 August 1949 and the Joint Chiefs of Staff (JCS) subsequently identified SAC's primary objective was to damage or destroy the Soviet Union's ability to deliver nuclear weapons. The JCS further defined SAC's secondary objective was to stop any Soviet advances into Western Europe, and its tertiary objective was the previous EWP 1–49 industrial mission. Korean War In July 1950, in response to combat operations on the Korean peninsula, SAC dispatched ten nuclear-capable bombers to Guam and deployed four B-29 bomber wings in Korea for tactical operations, although this action caused SAC commander LeMay to comment "...too many splinters were being whittled off the [deterrence] stick". Initial SAC B-29 successes against North Korea in the summer of 1950 were countered by subsequent Soviet