Tens of thousands of unaccompanied children have been arriving at the U.S.-Mexico border each year, sparking debate over how to respond. How is the Joe Biden administration handling it?

Russian leaders have watched with mounting resentment as the transatlantic alliance has nearly doubled its membership since the end of the Cold War. President Vladimir Putin has drawn a red line in U…

Sarin, one of the world’s most lethal chemical weapons, has long been stockpiled but is rarely used by states or terrorists. Allegations of attacks on civilians in Syria, if substantiated, would repr…