Research

Stephen Walt argues that if the world is entering a period of defense dominance—and if the resolve of most states is greatest in their immediate surroundings—then the ability of any country to wield vast and unchallenged global influence will decline. In such a world, the United States will have to pick its battles more carefully than it has in the past.

In this deeply personal book, Joseph Nye shares his own journey living through the American century.

In the Henty Mance interview, Joseph Nye, who coined term 'soft power,' says that the turmoil facing the United States and Harvard was worse in the 1960s.

Episode 92 examines conflict delegations and the roles of intermediary actors within proxy conflict. Our guests introduce the idea of intermediaries and pull from academic and practical experience to set the stage.  Along with other historical examples, they examine the role Pakistan played as a key go-between from the Soviet invasion of Afghanistan through the American withdrawal in 2021. They offer lessons for working through intermediaries in ongoing conflicts and highlight pitfalls found within these complex geopolitical relationships. 

Foreign Affairs has recently published a number of articles on how the United States should engage with the Taliban government in Afghanistan, extremist forces within the regime, how the West can help ordinary Afghans, and the fate of the country’s women. To complement these essays, Foreign Affairs asked a broad pool of experts for their take. As with previous surveys, Foreign Affairs approached dozens of authorities with expertise relevant to the question at hand, along with leading generalists in the field. Participants were asked to state whether they agreed or disagreed with a proposition and to rate their confidence level in their opinion. Two Belfer Center experts participated, International Security Executive Editor Jacqueline L. Hazelton and Future of Diplomacy Project Senior Fellow Paula Dobriansky.

Stephen Walt argues that in a multipolar world, the United States will be in an ideal situation to play the other major powers off against each other, and it can let its partners in Eurasia bear more of the burden of their own security. 

A new theory of war duration suggests that strategic narratives explain why the U.S. war in Afghanistan endured and ended. A robust anti-terrorism narrative generated audience costs for presidential inaction. As the narrative weakened, these costs declined, and the war ended.

William L. d'Ambruoso writes that ruthlessness does not guarantee success, but it usually proves necessary — a difficult truth that should sit uneasily with democratic counterinsurgents who are supposed to care about human rights. 

In his first public comments since U.S. forces withdrew from Afghanistan, former Secretary of Defense and Belfer Center Director Ash Carter joined Harvard Kennedy School Dean Doug Elmendorf for a wide-ranging discussion about Afghanistan during a JFK Jr. Forum event Wednesday, October 6. Their discussion ranged from national security and U.S. foreign policy over 20 years to the immense contributions and sacrifices made in Afghanistan and how best we can promote human rights going forward.

A complete video along with clips from the event are available here.  The transcript is accessible here.

The Russian/Chinese-led bloc is expected to approve Iran's accession this week amid uncertainty over President Raisi's foreign posture and ongoing turmoil in Afghanistan.