KEI is the Ballistic Missile Defense System (BMDS) element, now being developed by the Missile Defense Agency, designed to destroy mid- and long-range enemy missiles during their boost/ascent phase of flight.

A team of the nation’s leading defense companies led by Northrop Grumman is developing and testing the system.

Why is it necessary?

While moving toward an initial defensive capability in October 2004, our nation is currently still vulnerable to ballistic missile attacks. Rogue nations developing nuclear and chemical capabilities continue to pose a serious threat to global security. The United States, through the Missile Defense Agency, is currently developing a multi-layered missile defense system to protect America and its allies. When complete, the global system will be able to destroy enemy missiles at all three phases of flight – boost-, mid-course, and terminal. KEI provides a critical element to the layered defense with its ability to defeat the threat during the boost/ascent phase of flight.

What does KEI do?

KEI destroys enemy missiles at their most vulnerable point – the boost/ascent phase of flight. This is the phase when missiles are moving relatively slowly, their location is more predictable, and before reentry vehicles, decoying warheads, or countermeasures can be deployed.

How is KEI different from other missile defense systems?

Visible, deployable, and sustainable, KEI will provide a land-based capability that can be adapted quickly and easily to sea-based platforms. The launcher and interceptor can be rapidly transported by a C-17 aircraft and put in place in a matter of hours just about anywhere in the world. These characteristics make KEI a highly effective deterrent.

The system complements other boost-, midcourse- and terminal-defense interceptor programs currently underway by adding the final link to America’s developing global defense system.

When wil the first interlceptors be completed?

The Northrop Grumman-led team is entering an eight-year development and test program. Under this contract, the team will produce 10 interceptors that will be tested over the duration of the contract.

How many interceptors are being built?

We plan to build 10 interceptors and fly to intercept in five integrated flight
tests over the course of the contract.

Has the system been tested? How do you know it will work?

We have a very robust testing plan to build 10 interceptors that will be tested in
five integrated flight tests over the course of the contract. We also plan 27 static booster tests as well to ensure mission success. The KEI design represents innovative use of mature and proven technologies offering a new capability at minimum risk and cost.

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