Rafael Grossi, the head of the UN atomic watchdog, urged Iran on Monday to reveal the source of uranium particles discovered at four undeclared locations. “I am deeply concerned that nuclear material has been present at the three undeclared locations in Iran and that the current locations of this nuclear …

The Taliban have urged Afghans who worked for departing U.S. and NATO militaries in Afghanistan over the years not to “desert” their war-ravaged nation for fear of retribution by the insurgent group. Monday’s Taliban pledge comes as thousands of Afghans employed, mostly as interpreters, by the United States and allied …

President Vladimir Putin has signed a law that formalizes Russia’s withdrawal from an international treaty allowing nations to collect information on one another’s military forces in order to increase transparency, following the departure from the accord by the United States late last year. The document was published on the official …