First part of the final report of the 2005 Defense Base Closure and Realignment Commission (BRAC) analyzing the recommendations made by the U.S. Department of Defense (DOD) regarding 160 military installations. This volume includes the executive summary for the project and four chapters regarding the Commission's work: 1. Commission Findings & Recommendations, 2. Issues for Further Consideration, 3. Previous Experience with Base Closures, and 4. The 2005 BRAC Process. Additional material is published in the appendices (Volume 2).