A move to block sanctions relief has been defeated, averting a likely spike in global aluminum prices but also spotlighting the tough road ahead for Congress in shaping policy on Russia.

We are entering a new and dangerous period of nuclear competition.

Fifty years after President Nixon's historic trip to China, U.S.-China relations are at a crossroads.

The president-elect knows only too well the failures of all the presidents who preceded him, and the hardening of positions that's occurred on both sides.

The United Nations is turning 75 but there is little to celebrate as the organization has fallen well short of its goals.