The eurozone crisis is expected to dominate the upcoming G20 leaders’ summit, as the organization works to stay relevant and move forward on a full agenda, says this Expert Roundup.

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.

Upcoming negotiations are shadowed by Iran’s increasing uranium enrichment capabilities. Four nonproliferation experts provide a path for resolving the intensifying nuclear dispute.

Prices at the pump are emerging as a significant U.S. election issue. Five experts offer a range of policy options, from lowering regulations to encouraging less consumption.

As the U.S. military formally ends operations in Iraq, four top expert voices in the debate on the war differ over whether it merited the cost in blood, treasure, and U.S. credibility.