A versatile simulation tool for integrating flight path data from missile interceptors and analyzing defensive missile scenarios is being developed for the Missile Defense Agency (MDA). The simulation tool will provide a user-friendly platform for design and testing of cooperative missile-interception techniques.Princeton Satellite Systems (PSS) is also developing innovative cooperative control algorithms for multiple interceptors pursuing multiple missiles. Our cooperative control algorithms will be based on the framework of artificial potentials for determining command accelerations for individual interceptors. The artificial potentials framework provides a systematic procedure for designing and implementing formation control and reconfiguration maneuvers for interceptors. We will combine artificial potential based cooperative control with modern target detection and missile guidance techniques to create an integrated solution for cooperative missile interception. This will be a step towards developing reliable technology for countering missiles that are specifically designed to elude interceptors via quick and random flight path changes. The simulation tool is modular in nature, and will incorporate all aspects of cooperative missile interception including search-surveillance-engage modes, formation control and reconfiguration, inter-interceptor communication limitations, resource management and flight path data fusion.Interceptor performance constraints such as minimum turning radius and maximum velocity, as well as time-varying communication topologies is also incorporated.