International Relations

From July 11-12, 2023, NATO leaders gathered in Vilnius, Lithuania for one of the most significant NATO summits in history. This timely brief by Eric Rosenbach, Grace Jones, and Olivia Leiwant serves as a background piece on Ukraine’s history with NATO, potential future pathways for accession, and the operational impact Ukraine’s NATO membership could have on the alliance. 

If China attempts reunification with Taiwan, how will the US meet its obligations to defend it? Two visiting fellows and officers of the US Air Force insist that the US must improve its preparedness for a new type of conflict.

Joseph Nye argues that in the face of the threats posed by China, Russia, and North Korea, Japan's self-defense depends more than ever on the strength of its alliances. By significantly increasing its own defense spending and pursuing closer military cooperation with the United States, the current government is moving in the right direction.

Why does the U.S. Army rely on persuasion to influence military partners to improve their forces despite repeated failures that undermine U.S. foreign policy goals? The army prioritizes its role as a fighting force, not an advisory group. U.S. leaders have developed an ideology—the cult of the persuasive—to advance army bureaucratic interests.

Contrary to the conventional wisdom, military innovation can degrade a state’s military effectiveness as well as strengthen it. In fact, innovation is a gamble that a state may lose, particularly if it is already overextended in its commitments. 

Aroop Mukharji writes that the moment the United States became a major military power in Asia can be traced to a single day, Oct. 28, 1898. It is a story about the difficulty of letting go, and it teaches scholars and policymakers an important lesson: An everyday psychological bias can lead to years of entanglement. Foreign policy commentary is awash with debates about why one region or another is more or less relevant to U.S. national interests. Those debates are important, but they miss a general point. It is always hard to let go.

Since last April, Russia has been slowly and methodically building up military forces near Ukraine’s border. Those who recall the 1990 U.S. military buildup in advance of the January “Desert Storm” attack to free Kuwait and invade Iraq, will recognize that such a buildup is a serious threat. 

The U.S. should accept with humility its inability to fully eliminate terrorism. Specifically, U.S. policy must balance “ends, ways, and means;” establish clear and achievable objectives; adopt efficient, effective, and resource-sustainable strategies; ensure synchronization of diplomatic and military efforts; build alliances to share the burden of countering terrorism; and leverage cooperative mechanisms and regional partnerships to increase the capacity and willingness of regional states to defend their sovereignty and contribute to multinational coalitions against terrorism.  A balanced, integrated, and synchronized strategy encompassing defense, diplomacy, economic, and humanitarian assistance lines of effort should be cornerstone of a revamped foreign policy in the coming decades.

At one point in human history, water’s importance in war went beyond bearing convoys, hiding submarines, and slaking soldiers’ thirst. Water was often itself a weapon. In areas where it was scarce, armies took action to make it scarcer to force besieged enemy cities to capitulate, and in areas where it was abundant, combatants destroyed dams and watched the resulting floods carry their adversaries away. Today, however, most combatants recoil at the use of water as a weapon, and only the most depraved deploy it.

If the United States were to withdraw from Europe, any European effort to develop an autonomous defense capacity would be fundamentally hampered by profoundly diverging threat perceptions and severe military capacity shortfalls that would be very costly and time-consuming to close.