Peoples Liberation Army (PLA), also known as the Armed Forces of the Peoples Republic of China, is the arm of the ruling party, the Chinese Communist Party (CCP), and the founding and ruling political party of the PRC. The Central Military Commission (CMC), along with several minor units, is the PLA's armed forces. It also has five major service branches: Ground Force (PLAGF), Navy(PLAAF), Air Force [PLAAF], Rocket Force (PLARF) and Strategic Support Force (PLASSF). The origins of the PLA can be traced back to the left-wing units in the National Revolutionary Army of the Kuomintang, which broke away from the government on the 1 August 1927. They were part of an uprising against nationalist government as China Red Army. They were reintegrated into NRA units of New Fourth Army or Eighth Route Army during Second Sino-Japanese War. On October 10, 1947, the two NRA communist units were reconstituted as the PLA. The majority of military units in the country are assigned one of five theatre commands based on their geographical location. The PLA, which does not include paramilitary and reserve forces, is the largest military force in the world. It also has the second-largest defense budget. It has also been called a potential military superpower due to its rapid modernization.