The U.S.-Saudi relationship has become increasingly strained since the onset of the Arab awakening, and Iran’s nuclear ambitions could pose further challenges, says expert F. Gregory Gause III.

The challenge of handling the influx of migrants and refugees into Europe requires a far more robust global response, says CFR’s Edward Alden.

CFR’s Paul Stares highlights three of the top conflict prevention priorities for 2013.

The humanitarian crisis in Iraq is likely to deepen until leaders in Baghdad can form an inclusive government and defeat jihadist fighters on the battlefield, explains CFR’s Isobel Coleman.