中国人民解放军第二炮兵部队
The US DoD estimates that the missile will continue to serve as a regional deterrence instrument until they can be replaced by the DF-31. This will be a significant capability gain for the Second Artillery Corps. The DF-31A has a range of 11,700 kilometers (as opposed to just 7,000 for the DF-4) and is road- and rail-mobile, and thus more survivable than the silo-based DF-4.