Trident II (D-5) Sea Launched Ballistic Missile UGM 133A (Trident II Missile)

The TRIDENT II D5 Sea-Launched Ballistic Missile UGM 133A TRIDENT II D5 missile developed an improved Submarine Launched Ballistic Missile with greater accuracy and payload capability at equivalent ranges as compared to the TRIDENT I C4 system. TRIDENT II D5 enhances United States U.S. strategic deterrence by providing a survivable sea based system capable of engaging the full spectrum of potential targets. It enhances the U.S. position in strategic arms negotiation by providing a weapon system with performance and payload flexibility that accommodates various treaty initiatives. The TRIDENT II D5 missiles increased payload allows the deterrent mission to be achieved with fewer submarines.