A UN tribunal’s ruling upholds the need for a rules-based order that counters China’s efforts to turn the South China Sea region into a sphere of influence, says expert Andrew Erickson.

Even as Iraqi special forces and Shia militias roll back the self-proclaimed Islamic State, Baghdad has done little to address the underlying causes of Sunni militancy.

The conflict in Ukraine’s east could remain unresolved indefinitely unless all sides pursue a different course toward a compromise, says expert Nikolas Gvosdev.

The Obama administration has other methods to pursue a binding international agreement on climate change in Paris that fall short of a treaty, says CFR’s John B. Bellinger III.