Pakistan-U.S. ties have rebounded, but domestic turmoil and looming leadership transitions should command U.S. attention on this vital terrorist frontline, writes CFR's Daniel Markey.

Leslie H. Gelb says it's good riddance that President Obama's talk of shifting from Europe to Asia faded as the G8 and NATO meetings loomed.

NATO leaders released this Deterrence and Defence Posture Review at the NATO summit in Chicago, Illinois on May 20, 2012

The Summit Declaration on Defence Capabilities: Toward NATO Forces 2020 was released at the NATO summit in Chicago, Illinois on May 20, 2012.

This declaration was issued at the NATO summit in Chicago, Illinois on May 20, 2012.

NATO drew up this Strategic Concept in July 1990 at the NATO Heads of State and Government meeting.

As NATO's mission continues to redefine itself, four experts discuss what the alliance can do to remain relevant as a force for international peace and security.

The upcoming NATO summit will include talks on the endgame in Afghanistan, a new smart defense doctrine, and bolstering global partnerships, all of it colored by fundamental questions about the role and mission of the alliance, says CFR's Stewart Patrick.

NATO has been the foundation of transatlantic security for more than sixty years, but despite its longevity, critics question whether the alliance can stay relevant in the face of emerging threats, limited funding, and debates over its mission.

Colonel Chad T. Manske, USAF, says the question of what constitutes missile-defense interim capability will loom large over the NATO Summit, but the issue for NATO remains whether they can muster the political, diplomatic, economic, and technical will to bring a ballistic-missile defense capability on line.

This Congressional Research Service report explains the issues to be covered at the upcoming NATO Summit in Chicago, where talks about Afghanistan, "smart defense," and partnerships with non-NATO members are supposed to dominate.

Ahead of the mid-May NATO summit in Chicago, Ambassador Daalder discusses the alliance's priorities and future, as well as broader transatlantic relations.

In this Policy Outlook piece for the Carnegie Endowment for International Peace, NATO Deputy Assistant Secretary General for Emerging Security Challenges Jamie Shea discusses the role of NATO in times of austerity and how it can meet the challenges that lie ahead.

NATO talks a big game when it comes to global security, but its ability to affect war and peace outside of Europe is limited, writes Joshua Foust for Need to Know on PBS.

Colonel Chad T. Manske, USAF, says Western economies and capabilities are more inextricably linked than ever and warns against a policy shift away from U.S. security and interests in Europe.

Colonel Chad T. Manske, USAF, explains why now is not the time to retreat from Europe.

Richard N. Haass states, "The U.S.-European partnership that proved so central to managing and winning the Cold War will inevitably play a far diminished role in the years to come."

Charles A. Kupchan says that the upcoming meeting of NATO defense ministers and Russia will be an opportunity for Europe to include Russia in the post-Cold War settlement.

This module features teaching notes by CFR former senior fellow for transatlantic relations James M. Goldgeier, author of the Council Special Report The Future of NATO, along with other resources to supplement the text. Dr. Goldgeier discusses the relevance of NATO in a post-cold war world, and how the U.S. can benefit from collective security across the atlantic for the successful outcome of military operations in the Middle East.

Richard N. Haass says, "Even before it began, Europe's moment as a major world power in the twenty-first century looks to be over."