The fall of the Berlin Wall 20 years ago marked a triumph of the U.S. strategy of containment. But U.S. policymakers have been struggling to establish new guidelines for confronting the world’s compl…

This month’s vote will be the first conducted while Russia is involved in a major war, and Vladimir Putin is counting on a strong show of national unity and highlighting support in occupied Ukraine.

Escalating friction between Japan and China in the East China Sea is becoming more difficult to contain, fed by political opportunism in both countries, says CFR’s Sheila Smith.

Secretary of State John Kerry’s trip to an Asian security meeting this week is an opportunity to encourage Southeast Asian countries to present a more united front in the face of Chinese assertivenes…

CFR’s Edward Alden says U.S. response to recent air-security failures should be to improve existing measures that identify genuine threats instead of imposing "knee-jerk initiatives that look tough" …

This year’s daunting UN challenges for President Obama: navigating the Palestinian statehood thicket and convincing Americans that UN diplomacy matters, writes CFR’s Stewart Patrick.