A U.S. Navy submarine floating beneath the surface of the Pacific Ocean fired an unarmed Trident D5 strategic missile, marking the 135th consecutive successful test flight of the Lockheed Martin-built weapon since 1989.
A U.S. Navy submarine floating beneath the surface of the Pacific Ocean fired an unarmed Trident D5 strategic missile, marking the 135th consecutive successful test flight of the Lockheed Martin-built weapon since 1989.