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.

Josef Joffe, an expert on European and U.S. politics, notes unparalleled European interest in the U.S. presidential campaigns--and unrealistic expectations as well.

Jeffrey Mankoff, an expert on Russia, says the dispute that led Russia to cut off natural gas to Ukraine has its origins in differences over pricing as well as Ukraine’s interest in closer ties with …

Europe expert Charles A. Kupchan says that President Barack Obama’s trip to Europe "went as well as could be expected" in light of some of the policy differences that became clear ahead of his depart…

The United States and India should hold classified exchanges on Pakistan’s nuclear program and its role in Afghanistan as well as coordinate closely on global issues, says CFR’s Robert D. Blackwill, …