Originally developed by Lockheed Missiles and Space Corporation, the missile is armed with thermonuclear warheads and is launched from nuclear-powered ballistic missile submarines (SSBNs).
Awalnya dikembangkan oleh Lockheed Missiles dan Space Corporation, rudal ini dipersenjatai dengan hulu ledak termonuklir dan diluncurkan dari kapal selam rudal balistik bertenaga nuklir (SSBNs).