Kinetic Energy Interceptors
Northrop Grumman leads a team of the nation’s leading defense companies in developing and testing KEI.
KEI is the Ballistic Missile Defense System (BMDS) element that is being designed to destroy enemy ballistic missiles during their boost and early midcourse phases of flight. It is also the first ballistic missile defense weapon system to be developed without the constraints of the Anti-Ballistic Missile Treaty.