from the missile cruisers Macon and Toledo. It is also developing Regulus II, a more advanced guided missile that can reach an altitude of 50,000 ft. and speeds of 800 to 1,000 m.p.h. The Army has ...

During the Cold War, the United States Postal Service and the US Navy experimented with delivering mail via Regulus missile. More from Military & Defense During the Cold War, the United States ...