Dating from the late 19th century, Picatinny Arsenal continued to contribute to the national defense in the Cold War period. In addition to research and development in such fields as pyrotechnics, plastics, and explosives, the arsenal also helped design rockets and missile warheads.
An important Korean War contribution was the development of a bazooka rocket capable of penetrating the armor of a T-34 tank. The Army set up a pilot production plant at Picatinny for this weapon. Also in the early 1950s, a Naval Air Rocket Test Station was established at the former Lake Denmark Powder Depot.
Warheads were developed at Picatinny for the following tactical missiles: Nike Ajax, Nike Hercules, Hawk, Corporal, Honest John, Littlejohn, Lacrosse, Redstone, Pershing, Sergeant, Patriot, and Lance.