The Dong-Feng 15 (a.k.a. DF-15, M-9, CSS-6) is a short-range ballistic missile developed by the People's Republic of China. The DF-15 and the newer DF-16 are thought to be the only non-nuclear missiles in use by the People's Liberation Army Second Artillery Corps. The U.S. Department of Defense estimated in 2008 that China had 315-355 DF-15 missiles and 90-110 launchers.