The Dong-Feng 15 (a.k.a. M-9, CSS-6)'s a short-range ballistic missile developed by the People's Republic of China. It's the only non-nuclear missile being used by the People's Liberation Army Second Artillery Corps. The U.S. Department of Defense estimates that China has 315-355 missiles, and 90-110 launchers. History Development on the DF-15 began in 1985 with a finalized design proposal being approved by the PLA in 1987. From the late 1980s to the mid 1990's, testing of the missile was don… (More on Df-15)