The Lance Missile is a field mobile, tactical, surface-to-surface ballistic missile. The missile was developed to provide nuclear and conventional fire support for the US Army. The Lance Missile could carry a W70 nuclear warhead, a conventional shaped charge munition designed for bunker penetration, or anti-personnel/anti-material bomb cluster units. The Lance Missile replaced the earlier Honest John and Sergeant SRBM missile systems deployed in 1954 and 1962.