From the Baltic to the South China Sea, newly assertive authoritarian states sense an opportunity to resurrect old empires or build new ones at America's expense. Hoping that U.S. decline is real, nations such as Russia, Iran, and China are testing Washington's resolve by targeting vulnerable allies at the frontiers of American power. This book explains why the United States needs a new grand strategy that uses strong frontier alliance networks to raise the costs of military aggression in the new century. The book describes the aggressive methods which rival nations are using to test American power in strategically critical regions throughout the world. It shows how rising and revisionist powers are putting pressure on our frontier allies—countries like Poland, Israel, and Taiwan—to gauge our leaders' commitment to upholding the American-led global order. To cope with these dangerous dynamics, nervous U.S. allies are diversifying their national-security “menu cards” by beefing up their militaries or even aligning with their aggressors. The book reveals how numerous would-be great powers use an arsenal of asymmetric techniques to probe and sift American strength across several regions simultaneously, and how rivals and allies alike are learning from America's management of increasingly interlinked global crises to hone effective strategies of their own. The book demonstrates why the United States must strengthen the international order that has provided greater benefits to the world than any in history.

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This chapter assesses the benefits of frontier alliances for the United States both historically and today. The most important benefit that the United States derives from alliances is through their use as tools of geopolitical management that enhance its ability to compete against other states. For the United States as a maritime power of global reach, using forward-deployed alliances in the rimlands of Eurasia is a cost-effective tool for managing the international system that is preferable to the strategic alternatives now being presented for U.S. foreign policy. From this emerges the main imperative of U.S. grand strategy: to prevent the emergence of a power or combination of powers within the Eurasian landmass that could invade or economically dominate the United States. America has three basic options for how it does so: direct containment, retreat and reentry, and alliances.

This chapter discusses the Habsburg grand strategy. The Habsburg Empire had an especially pressing need to engage in the pursuit of grand strategy because of its vulnerable location and the unavailability of effective offensive military instruments with which to subdue the threats around its frontiers. Weakness is provocative, and apathy is rarely rewarded in even the most forgiving of strategic environments. For an impecunious power in the vortex of east-central European geopolitics, these traits, if permitted to coexist for long, would lead to the extinction of the state. This was the signal lesson from the wars of the eighteenth century, which had culminated in a succession struggle that saw a militarily weak Austria dangerously bereft of allies invaded from three directions and almost destroyed. These experiences spurred Habsburg leaders to conceptualize and formalize the matching of means to large ends in anticipation of future threats. The result was a conservative grand strategy that used alliances, buffer states, and a defensive army to manage multifront dynamics, avoid strains beyond Austria’s ability to bear, and preserve an independent European center under Habsburg leadership.

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