As countries prepare to sign the landmark Paris climate accord, the work to reduce global carbon emissions is only beginning, says CFR’s Michael Levi.

The twin bombings in Brussels have exposed the need for closer European security cooperation at the same time that anti-EU political forces are on the rise, says expert Ian Lesser.

The Islamic State’s attack on Paris demonstrate that both Europe and the United States need to commit to winning the ideological war against extremism with renewed vigor, says CFR’s Farah Pandith.

Pope Francis will use his upcoming high-level visits to the U.S. and UN to press the concerns of the poor and marginalized, says expert Kenneth Himes.

As election season approaches, and global crises in Greece and elsewhere intensify, U.S. foreign policy is in a state of drift that puts the United States at the risk of falling behind its rivals, sa…