With 2.3 million active troops, the People's Liberation Army (PLA) is the largest standing military force in the world. The PLA is commanded by the Central Military Commission (CMC). China has the second-biggest military reserve force, only behind North Korea. The PLA consists of the Ground Force (PLAGF), the Navy (PLAN), the Air Force (PLAAF), and the People's Liberation Army Rocket Force (PLARF). According to the Chinese government, China's military budget for 2017 was US$151,5 billion. China has the world's second-largest military budget.