The handoff of foreign policy responsibility from one U.S. presidential administration to another has proven risky in many cases. The next transition occurs at a time of extraordinary global challeng…

China’s anti-satellite test in January drew international condemnation but also piqued interest in some quarters about instituting a space weapons ban.

Iran continues to raise concerns in Washington that it is intent on destabilizing postwar Iraq. Most recently, U.S. Ambassador Zalmay Khalilzad accused Iran of meddling in Iraqi affairs by financing …