Forty-six years ago today, on December 13, 1979 (October 24, 1979 lunar calendar), the United States successfully tested the Trident I missile. On December 13, 1979, the US Navy successfully launched a Trident I missile. The missile was launched underwater from the nuclear submarine "Marino Vallejo" fifty nautical miles off the coast of Cape Canaveral. The Trident I missile is powerful and has a much longer range than the Poseidon and Polaris missiles. It can hit targets from 7,400 kilometers to 11,100 kilometers away, and submarine-launched missiles can reach targets in the Soviet Union.