This proposed program will develop an innovative, agile, and lethal rocket motor that incorporates a Controllable Pyrolysis Rocket Engine CPRE using a Glycidyl Azide Polymer fuel generator and gelled inhibited red fuming nitric acid oxidizer. This innovative propulsion concept can pule or throttle to respond to evading targets, increase range, minimize the time to target for the mission target range, and break lock and re-acquire a new target. The regression rate of the fuel grain is This technology has been developed under an Army 6.1 program and MDA and NASA SBIR programs. Purdue University, which is a leading propulsion research institute, is our Research Institution for this STTR. During Phase I, an Air Force application and engine configuration will be identified, an ignition system will be developed, a subscale CPRE engine will be designed, fabricated, and demonstrated through hot-fire testing. A full-scale conceptual design for Phase II will be developed.