Significant gaps exist in the ability of the United States and its allies to deter or defeat aggression that could threaten national interests. For example, NATO members Estonia, Latvia, and Lithuania remain vulnerable to Russian invasion. South Korea is vulnerable to North Korea's artillery. China's neighbors — especially Taiwan — are vulnerable to coercion and aggression. Violent extremists continue to pose a threat in the Middle East. Solutions to these problems will take both money and time. In this report, RAND researchers analyze the specific technological, doctrinal, and budgetary gaps between the stated strategic and defense policies of the United States and the resources and capabilities that would be required to implement those policies successfully. Absent a change in administration policy or a new political consensus in favor of a defense buildup, there will not be enough resources to close the gap between stated U.S. aims and the military capabilities needed to achieve them. This leaves the Trump administration and this Congress with some difficult choices. The United States could decide to focus primarily on its own security, devoting to allies and partners only those forces and capabilities that could be easily spared. At the other end of the spectrum, the Trump administration could take the central role in defending U.S. allies against aggression by Russia, China, and other potential adversaries. The hard-to-find middle ground would be to provide the military with sufficient capabilities to ensure that aggression that imperils U.S. interests in critical regions would fail while helping allies build the capacity to do more for their own and the collective defense.

National secuirty strategy is a vast subject involving a daunting array of interrelated subelements woven in intricate, sometimes vague, and ever-changing patterns. Its processes are often irregular and confusing and are always based on difficult decisions laden with serious risks. In short, it is a subject understood by few and confusing to most. It is, at the same time, a subject of overwhelming importance to the fate of the United States and civilization itself. Col. Dennis M. Drew and Dr. Donald M. Snow have done a considerable service by drawing together many of the diverse threads of national security strategy into a coherent whole. They consider political and military strategy elements as part of a larger decisionmaking process influenced by economic, technological, cultural, and historical factors. I know of no other recent volume that addresses the entire national security milieu in such a logical manner and yet also manages to address current concerns so thoroughly. It is equally remarkable that they have addressed so many contentious problems in such an evenhanded manner. Although the title suggests that this is an introductory volume - and it is - I am convinced that experienced practitioners in the field of national security strategy would benefit greatly from a close examination of this excellent book. Sidney J. Wise Colonel, United States Air Force Commander, Center for Aerospace Doctrine, Research and Education

The first in a series exploring the elements of a national strategy for U.S. foreign policy, this book examines the most critical decisions likely to face the next president. The book covers global and regional issues and spotlights the long-term policy issues and organizational, financial, and diplomatic challenges that will confront senior U.S. officials in 2017 and beyond.

Mission Creep: The Militarization of US Foreign Policy? examines the question of whether the US Department of Defense (DOD) has assumed too large a role in influencing and implementing US foreign policy while confronting the challenges arising from terrorism, Islamic radicalism, insurgencies, ethnic conflicts and failed states.

America no longer enjoys military primacy in the Indo-Pacific and its capacity to uphold a favourable balance of power is increasingly uncertain. The combined effect of ongoing wars in the Middle East, budget austerity, underinvestment in advanced military capabilities and the scale of America’s liberal order-building agenda has left the US armed forces ill-prepared for great power competition in the Indo-Pacific. America’s 2018 National Defense Strategy aims to address this crisis of strategic insolvency by tasking the Joint Force to prepare for one great power war, rather than multiple smaller conflicts, and urging the military to prioritise requirements for deterrence vis-à-vis China. Chinese counter-intervention systems have undermined America’s ability to project power into the Indo-Pacific, raising the risk that China could use limited force to achieve a fait accompli victory before America can respond; and challenging US security guarantees in the process. For America, denying this kind of aggression places a premium on advanced military assets, enhanced posture arrangements, new operational concepts and other costly changes. While the Pentagon is trying to focus on these challenges, an outdated superpower mindset in the foreign policy establishment is likely to limit Washington’s ability to scale back other global commitments or make the strategic trade-offs required to succeed in the Indo-Pacific. Over the next decade, the US defence budget is unlikely to meet the needs of the National Defense Strategy owing to a combination of political, fiscal and internal pressures. The US defence budget has been subjected to nearly a decade of delayed and unpredictable funding. Repeated failures by Congress to pass regular and sustained budgets has hindered the Pentagon’s ability to effectively allocate resources and plan over the long term. Growing partisanship and ideological polarisation — within and between both major parties in Congress — will make consensus on federal spending priorities hard to achieve. Lawmakers are likely to continue reaching political compromises over America’s national defence at the expense of its strategic objectives. America faces growing deficits and rising levels of public debt; and political action to rectify these challenges has so far been sluggish. If current trends persist, a shrinking portion of the federal budget will be available for defence, constraining budget top lines into the future. Above-inflation growth in key accounts within the defence budget — such as operations and maintenance — will leave the Pentagon with fewer resources to grow the military and acquire new weapons systems. Every year it becomes more expensive to maintain the same sized military. America has an atrophying force that is not sufficiently ready, equipped or postured for great power competition in the Indo-Pacific — a challenge it is working hard to address. Twenty years of near-continuous combat and budget instability has eroded the readiness of key elements in the US Air Force, Navy, Army and Marine Corps. Military accidents have risen, aging equipment is being used beyond its lifespan and training has been cut. Some readiness levels across the Joint Force are improving, but structural challenges remain. Military platforms built in the 1980s are becoming harder and more costly to maintain; while many systems designed for great power conflict were curtailed in the 2000s to make way for the force requirements of Middle Eastern wars — leading to stretched capacity and overuse. The military is beginning to field and experiment with next-generation capabilities. But the deferment or cancellation of new weapons programs over the last few decades has created a backlog of simultaneous modernisation priorities that will likely outstrip budget capacity. Many US and allied operating bases in the Indo-Pacific are exposed to possible Chinese missile attack and lack hardened infrastructure. Forward deployed munitions and supplies are not set to wartime requirements and, concerningly, America’s logistics capability has steeply declined. New operational concepts and novel capabilities are being tested in the Indo-Pacific with an eye towards denying and blunting Chinese aggression. Some services, like the Marine Corps, plan extensive reforms away from counterinsurgency and towards sea control and denial. A strategy of collective defence is fast becoming necessary as a way of offsetting shortfalls in America’s regional military power and holding the line against rising Chinese strength. To advance this approach, Australia should: Pursue capability aggregation and collective deterrence with capable regional allies and partners, including the United States and Japan. Reform US-Australia alliance coordination mechanisms to focus on strengthening regional deterrence objectives. Rebalance Australian defence resources from the Middle East to the Indo-Pacific. Establish new, and expand existing, high-end military exercises with allies and partners to develop and demonstrate new operational concepts for Indo-Pacific contingencies. Acquire robust land-based strike and denial capabilities. Improve regional posture, infrastructure and networked logistics, including in northern Australia. Increase stockpiles and create sovereign capabilities in the storage and production of precision munitions, fuel and other materiel necessary for sustained high-end conflict. Establish an Indo-Pacific Security Workshop to drive US-allied joint operational concept development. Advance joint experimental research and development projects aimed at improving the cost-capability curve.

The second half of the 20th century featured a strategic competition between the United States and the Soviet Union. That competition avoided World War III in part because during the 1950s, scholars like Henry Kissinger, Thomas Schelling, Herman Kahn, and Albert Wohlstetter analyzed the fundamental nature of nuclear deterrence. Decades of arms control negotiations reinforced these early notions of stability and created a mutual understanding that allowed U.S.-Soviet competition to proceed without armed conflict. The first half of the 21st century will be dominated by the relationship between the United States and China. That relationship is likely to contain elements of both cooperation and competition. Territorial disputes such as those over Taiwan and the South China Sea will be an important feature of this competition, but both are traditional disputes, and traditional solutions suggest themselves. A more difficult set of issues relates to U.S.-Chinese competition and cooperation in three domains in which real strategic harm can be inflicted in the current era: nuclear, space, and cyber. Just as a clearer understanding of the fundamental principles of nuclear deterrence maintained adequate stability during the Cold War, a clearer understanding of the characteristics of these three domains can provide the underpinnings of strategic stability between the United States and China in the decades ahead. That is what this book is about.

Military Strategy: A Very Short Introduction adapts Clausewitz's framework to highlight the dynamic relationship between the main elements of strategy: purpose, method, and means. Drawing on historical examples, Antulio J. Echevarria discusses the major types of military strategy and how emerging technologies are affecting them. This second edition has been updated to include an expanded chapter on manipulation through cyberwarfare and new further reading.