The collapse of the Cold War–era nuclear arms treaty signals trouble for U.S.-Russia relations, European security, and nonproliferation efforts.

President Trump’s announcement to halt peace talks in Afghanistan gives U.S. negotiators a chance to correct three critical mistakes.

The United States and Japan have agreed to a trade deal, but critics say the deal isn’t as good as what it replaced.

Recent attacks that appeared to target immigrants have underscored South Africa’s struggle to combat violence and limit tensions with the rest of the region.

The Trump administration’s killing of an Iranian military commander in Iraq raises questions about its legality under domestic and international law.