Based on Figure 5-22 and the results presented in this report, the committee concludes as follows with respect to the immediate future:


1.   The current homeland defense plan, which consists of GMD augmented by early intercept capabilities from Europe, is very expensive and has limited effectiveness.

2.   PTSS costs four times as much to acquire and four to five times as much over its 20-yr life cycle as the X-band radar suite recommended and it offers less value.

3.   GMD-E has substantially lower LCC and provides the most effective capabilities. It can be implemented within the same TOA over the next 5 years with an initial operational capability of FY 2019 provided some low pay-off programs are terminated and others are not started.

4.   GMD-E’s predicted capability for SLS over most of North America relieves the requirement, necessitated by current GMD limitations, for early intercepts from Europe against threats from the Middle East toward North America. This decoupling allows independent decisions for the later phase of European defense or any other new task.

The National Academies of Sciences, Engineering, and Medicine
500 Fifth St. N.W. | Washington, D.C. 20001

Copyright © National Academy of Sciences. All rights reserved.
Terms of Use and Privacy Statement