Every five years, DoD prepares a review of global defense capabilities extending to 2005 & beyond. This review focuses on the adjustment of forces to reflect the demise of the Warsaw Pact, reductions in DoD infrastructure, a service focus, & other changes. Contents: design, approach, & implementation of the Quadrennial Defense Review; the global security environment; defense strategy; alternative defense postures; forces & manpower; force readiness; transforming U.S. forces for the future; achieving a 21st century defense infrastructure; comments by the chairman of the Joint Chiefs of Staff. Glossary. Assessment by the Nat. Defense Panel.

Global advances in medicine, food, water, energy, microelectronics, communications, defense, and other important sectors of the economy are increasingly driven by discoveries in nanoscience and the development of nanotechnologies. Engaging the nanoscience and technology community in the crafting of national priorities, developing novel approaches for translating fundamental discovery to a technology readiness level appropriate for venture/industry funding, increasing domestic student interest in nanoscience to expand the workforce pipeline, and exploring new ways of coordinating the work of the National Nanotechnology Initiative (NNI) are all imperatives if the United States is to fully reap the societal benefits of nanotechnology. A Quadrennial Review of the National Nanotechnology Initiative provides a framework for a redesign of the NNI and its coordination with the goal of achieving a U.S. resurgence in nanotechnology. This report makes recommendations to improve the value of the NNI's research and development strategy and portfolio to the economic prosperity and national security of the United States.

In March 1993, Secretary of Defense Aspin initiated a comprehensive review of the nation's defense strategy, force structure, modernization, infrastructure, and foundations. He felt that a department-wide review needed to be conducted "from the bottom up" because of the dramatic changes that have occurred in the world as a result of the end of the Cold War and the dissolution of the Soviet Union. These changes in the international security environment have fundamentally altered America's security needs. Thus, the underlying premise of the Bottom-Up Review was that we needed to reassess all of our defense concepts, plans, and programs from the ground up. This final report on the Bottom-Up Review provides the results of that unprecedented and collaborative effort. It represents the product of hundreds of individuals' labor and dedication. It describes the extensive analysis that went into the review and the recommendations and decisions that emerged.

The end of the Cold War ushered in an era of profound change in the international arena and hence in the policymaking environment as well. Yet the changes that have characterized the post-Cold War era have often proceeded at different paces and have at times moved in opposing directions, placing unprecedented strain on policymakers seeking to shape a new national security and military strategy. This report describes the challenges policymakers have faced as seen through the lens of the three major force structure reviews that have taken place over the past decade: the 1990 Base Force, the 1993 Bottom-Up Review, and the 1997 Quadrennial Defense Review. The report focuses on the assumptions, decisions, and outcomes associated with these reviews as well as the planning and execution of each. It concludes that all three reviews fell short of fully apprehending the demands of the emerging threat environment, and the budgets that would be needed and afforded, resulting in a growing imbalance between strategy, forces, and resources over the decade. Accordingly, the report recommends that future defense planners adopt an assumption-based approach in which key planning assumptions are continually reassessed with a view toward recognizing--and rapidly responding to--emerging gaps and shortfalls.

A key technical issue for future Air Force systems is to improve their ability to survive. Increased use of stealth technology is proposed by many to be the major element in efforts to enhance survivability for future systems. Others, however, suggest that the high cost and maintenance required of stealth technology make increased speed potentially more productive. To help address this issue, the Air Force asked the NRC to investigate combinations of speed and stealth that would provide U.S. aircraft with a high survival capability in the 2018 period, and to identify changes in R&D plans to enable such aircraft. This report presents a review of stealth technology development; a discussion of possible future missions and threats; an analysis of the technical feasibility for achieving various levels of stealth and different speeds by 2018 and of relevant near-term R&D needs and priorities; and observations about the utility of speed and stealth trade-offs against evolving threats.