This report provides historical background on the enactment of declarations of war and authorizations for the use of force and analyzes their legal effects under international and domestic law. It also sets forth their texts in two appendices. The report includes an extensive listing and summary of statutes that are triggered by a declaration of war, a declaration of national emergency, and/or the existence of a state of war. The report concludes with a summary of the congressional procedures applicable to the enactment of a declaration of war or authorization for the use of force and to measures under the War Powers Resolution.

The Future Combat System (FCS) is the U.S. Army’s multiyear, multibillion dollar program at the heart of the Army’s transformation efforts. The FCS program exists in a dynamic national security environment which could significantly influence the program’s outcome. The FCS is experiencing a number of program development issues - with some technologies advancing quicker than anticipated, others progressing along predicted lines, while still others not meeting the Army’s expectations. Congress, in its authorization, appropriation, and oversight roles may wish to review the FCS program in terms of its capabilities and program costs.

On January 26, 2012, senior DOD leadership unveiled a new defense strategy based on a review of potential future security challenges, current defense strategy, and budgetary constraints. This new strategy envisions a smaller, leaner Army that is agile, flexible, rapidly deployable, and technologically advanced. This strategy will rebalance the Army's global posture and presence, emphasizing where potential problems are likely to arise, such as the Asia-Pacific region and the Middle East. Potential issues for Congress include the strategic risk posed by a smaller and restructured Army; the "health" of the Army given the impending downsizing; where the force will be based; the role of the National Guard and Reserves; and should the enrollment at the service academies (West Point) be reduced to pre-9/11 levels. This report will be updated as circumstances warrant.

This report is designed to provide an assessment of current Operation Iraqi Freedom (OIF) developments, in the context of relevant background, in order to support congressional consideration of short-term and long-term strategy and policy issues.

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This report about U. S. Military Support for NATO

This report discuses U.S. military involvement and support for NATO and considers military strategy priorities and concerns regarding placement and numbers of troops in Europe.

This preliminary assessment summarizes U.S. Army, Navy, Air Force, and Marine Corps performances during recent war, then relates it to past experience and potential threats in ways that might help decisionmakers determine the most suitable characteristics of U.S. armed forces for the rest of this decade.

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This report discusses and assesses the War Powers Resolution and its application since enactment in 1973, providing detailed background on various cases in which it was used, as well as cases in which issues of its applicability were raised.

This report discusses and assesses the War Powers Resolution and its application since enactment in 1973, providing detailed background on various cases in which it was used, as well as cases in which issues of its applicability were raised. It will be revised biannually.