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.

Experts from three countries offer their views about the role foreign policy might play in U.S. political conventions and what interest there is from the perspective of their countries.

North Korea’s nuclear test raises new concerns about its nuclear capabilities, regime succession, and the limits of both international pressure and engagement. Four experts address the policy options…

What’s in store next year for the global economy? Five experts weigh in on the challenges facing the eurozone, the fragility of emerging markets, and the prospects for clean energy.

Four experts debate whether Obama’s immigration reform plan, including an expanded path to legalization, would help or harm U.S. workers and economic growth.