The command headquarters of China's military forces are based in Beijing. The Central Military Commission, the political organ in charge of the military, is housed inside the Ministry of National Defense, located next to the Military Museum of the Chinese People's Revolution in western Beijing. The Second Artillery Corps, which controls the country's strategic missile and nuclear weapons, has its command in Qinghe, Haidian District. The headquarters of the Central Theater Command, one of five nationally, is based further west in Gaojing. The CTR oversees the Beijing Capital Garrison as well as the 27th, 38th and 65th Armies, which are based in Hebei.