The situation in Ukraine will continue to unravel unless Russia comes to planned diplomatic talks in Geneva this week with options for defusing the crisis, says expert Steven Pifer.

Tensions between the United States and Israel over Iran negotiations have jeopardized peace talks with Palestinians and left Israel vowing to go it alone on security if necessary, says expert Gerald …

An interim nuclear accord between Iran and world powers is still within reach despite lingering disagreements over details, says expert Barbara Slavin.

The unexpected convergence of the United States and Russia over Syria’s chemical weapons is likely to be strained by delays in the disarmament process, says expert Nicolas Gvosdev.

The United States should cripple the Syrian government’s ability to kill masses of its own people and openly intensify its support to opposition forces, says expert Frederic C. Hof.