The Pentagon has established a communication line to the Russian Defense Ministry in attempts to reduce the risk of dangerous misunderstandings as Russia wages war on Ukraine, a U.S. defense official said Thursday. The Defense Department set up the deconfliction line on Tuesday “for the purposes of preventing miscalculation, military …

Ukrainian officials said on Friday that fire at the largest nuclear power plant in Europe has been extinguished, but that the facility is now under Russian control after fighting. In a later development at a Friday news conference, the chief of the U.N.’s atomic watchdog said there had been no …

In April 1941, four years before he was to become President and eight months before the United States entered World War II, Senator Harry Truman of Missouri reacted to the news that Germany had invaded the Soviet Union: “If we see that Germany is winning the war, we ought to …