The State of America's Foreign Relations

President Obama's final State of the Union address tomorrow night is expected to be heavy on foreign affairs. Likely highlights: the Iran nuclear deal, the climate change summit, the free trade pact in Asia and renewed relations with Cuba. But all those are still works in progress — and critics call Mr. Obama an uncertain leader, who's let America's allies get weaker while enemies have grown stronger. We review seven years of victories, compromises and setbacks in a complex world that's often beyond even a US president's control.