The mass protests in Russia challenging the parliamentary vote reflect increasing hostility to Prime Minister Vladimir Putin and have the potential to change Russian politics in a fundamental way, sa…

Negotiating a Russian withdrawal from Crimea is still possible, but U.S. and Western leaders have options to strengthen Ukraine if the situation worsens, says CFR President Richard N. Haass.

This week’s latest round of Iran talks seems to have done little to reconcile the two sides on the country’s nuclear position, says CFR’s Michael A. Levi.

The search for evidence of chemical weapons in Syria is painstaking and hampered by harsh conditions, but could yield decisive findings as debate over military action intensifies, says expert Amy E. …