Submarine-Launched Intermediate Range Ballistic Missile
The U.S. Navy's Strategic Systems Programs Organization is funding the development of a new missile that would travel at supersonic speed to reach intermediate-range targets within 15 minutes.

ATK is developing the rocket motor technology, including both solid rocket booster motors and nozzles, for the proposed missile. The group conducted successful ground tests of both motors in 2006.

Designed for deployment on guided-missile submarines, the two-stage missile would offer the war fighter an extremely accurate, no-notice prompt global strike capability from an undetectable, highly mobile platform on station 24 hours a day, 7 days a week.