Report – Navy Aegis Ballistic Missile Defense (BMD) Program: Background and Issues for Congress

ATLANTIC OCEAN (Oct. 20, 2015) The Arleigh Burke-class guided-missile destroyer USS The Sullivans (DDG 68) fires a Standard Missile 2 (SM-2) during a live-fire test of the ship's Aegis weapons system Oct. 20, 2015. The Sullivans is participating in At Sea Demonstration 2015 (ASD 15), an exercise testing network interoperability between NATO and allied forces. (U.S. Navy photo by Information Specialist 1st Class Steven Martel/Released) 151020-N-XX999-001 Join the conversation: http://www.navy.mil/viewGallery.asp http://www.facebook.com/USNavy http://www.twitter.com/USNavy http://navylive.dodlive.mil http://pinterest.com https://plus.google.com

Issues for Congress regarding the Aegis BMD program include the following:

1.  required numbers of BMD-capable Aegis ships versus available numbers of BMD-capable Aegis ships;
2.  a proposed reduction in planned procurement quantities of SM-3 Block IB and IIA missiles under the FY2018 budget submission, compared to planned quantities under the FY2017 budget submission;
3.  whether the Aegis test facility in Hawaii should be converted into an operational Aegis Ashore site to provide additional BMD capability for defending Hawaii and the U.S. West Coast;
4.  burden sharing—how European naval contributions to European BMD capabilities and operations compare to U.S. naval contributions to European BMD capabilities and operations;
5.  the potential for ship-based lasers, electromagnetic railguns (EMRGs), and hypervelocity projectiles (HVPs) to contribute in coming years to Navy terminal phase BMD operations and the impact this might eventually have on required numbers of ship-based BMD interceptor missiles;
6.  technical risk and test and evaluation issues in the Aegis BMD program; and
7.  the lack of a target for simulating the endo-atmospheric (i.e., final) phase of flight of China’s DF-21 anti-ship ballistic missile.

Navy Aegis Ballistic Missile Defense (BMD) Program Congressional Research Service

Contents
Introduction ……………………………………………………………………………………………………………………. 1
Background ……………………………………………………………………………………………………………………. 1
Aegis Ships ………………………………………………………………………………………………………………. 1
Ticonderoga (CG-47) Class Aegis Cruisers……………………………………………………………… 1
Arleigh Burke (DDG-51) Class Aegis Destroyers…………………………………………………….. 2
Aegis Ships in Allied Navies …………………………………………………………………………………. 2
Aegis BMD System……………………………………………………………………………………………………. 2
Versions of Aegis BMD System …………………………………………………………………………….. 3
Aegis BMD Interceptor Missiles……………………………………………………………………………. 3
European Phased Adaptive Approach (EPAA) for European BMD…………………………………… 5
Planned Numbers of BMD-Capable Aegis Ships and SM-3 Interceptors…………………………… 6
Homeporting of BMD-Capable DDG-51s in Spain………………………………………………………… 6
Aegis BMD Flight Tests……………………………………………………………………………………………… 7
Allied Participation and Interest in Aegis BMD Program………………………………………………… 8
Japan ………………………………………………………………………………………………………………….. 8
Other Countries……………………………………………………………………………………………………. 9
FY2018 MDA Funding Request ………………………………………………………………………………….. 9
Issues for Congress………………………………………………………………………………………………………… 10
Required vs. Available Numbers of BMD-Capable Aegis Ships…………………………………….. 10
Overview…………………………………………………………………………………………………………… 10
BMD-Capable Destroyers Fitzgerald and John S McCain Seriously Damaged ………….. 12
Proposed Reduction in Planned SM-3 Block IB and IIA Procurement Quantities…………….. 13
Potential Aegis Ashore Site in Hawaii ………………………………………………………………………… 13
Burden Sharing: U.S. vs. European Naval Contributions to European BMD……………………. 14
Potential Future BMD Contribution from Lasers, Railguns, and Hypervelocity
Projectiles…………………………………………………………………………………………………………….. 14
Technical Risk and Test and Evaluation Issues…………………………………………………………….. 14
December 2016 DOT&E Report ………………………………………………………………………….. 15
April 2016 GAO Report………………………………………………………………………………………. 20
Target for Simulating Endo-Atmospheric Flight of DF-21 ASBM………………………………….. 20
Legislative Activity for FY2018………………………………………………………………………………………. 22
Summary of Action on FY2018 MDA Funding Request……………………………………………….. 22
FY2018 National Defense Authorization Act (H.R. 2810/S. 1519)…………………………………. 23
House Committee Report…………………………………………………………………………………….. 23
House Floor Action…………………………………………………………………………………………….. 24
Senate Committee Report ……………………………………………………………………………………. 25
Senate Floor Action…………………………………………………………………………………………….. 25
FY2018 DOD Appropriations Act (Division A of H.R. 3219)………………………………………… 25
House ……………………………………………………………………………………………………………….. 25
Figures
Figure 1. Aegis BMD System Variants……………………………………………………………………………….. 4
Navy Aegis Ballistic Missile Defense (BMD) Program
Congressional Research Service
Tables
Table 1. Numbers of BMD-Capable Aegis Ships and SM-3 Missiles Under FY2017
Budget Submission……………………………………………………………………………………………………….. 6
Table 2. MDA Funding for Aegis BMD Efforts, FY2018-FY2022…………………………………………. 9
Table 3. SM-3 Block IB and IIA Missile Procurement Quantities………………………………………… 13
Table 4. Summary of Congressional Action on FY2018 Request for MDA Procurement
and RDT&E Funding for Aegis BMD Program………………………………………………………………. 22

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