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 ...

And so the USPS and the DoD worked together and in the summer of 1959, fired a missile called Regulus from the U.S.S. Barbero (PDF) to a naval station 100 miles away in Mayport, Florida.

USS Long Beach was equipped with a variety of weapons systems. She was initially slated to carry the Regulus nuclear cruise missile, but was later equipped with four launch tubes for the Polaris ...