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.

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.

Germany’s insistence upon Greek reform is not about inflicting humiliation or exacting revenge, but rather making the country economically viable in the long term, says expert Ulrich Speck.