A decree signed by the Russian leader, though long-planned, came days after President Biden authorized the use of ...

A major decision by the United States to allow Ukraine to fire long-range missiles deeper inside Russian territory has ...

A different mix of fuels with enhanced properties could overcome some of the major barriers to making fusion a more practical ...

The U.N. nuclear watchdog says Iran has defied international demands to rein in its nuclear program and has increased its ...

The U.S., Japan, and South Korea last week announced a new "Trilateral Secretariat" tasked with coordinating joint security ...

Putin’s forces hit with first ATACMS long-range missiles after US decision, Moscow says - Russian president Vladimir Putin ...

Markets experienced volatility Tuesday as investors weigh mounting tensions between Russia and the United States.

Unlike China, Russia, and North Korea, which recognize that nuclear weapons serve as both a fundamental guarantee of ...

Russian leader Vladimir Putin shows no signs of backing down in its war on Ukraine, regardless of what Donald Trump claims.

Ukraine has fired six ATACMS into Russia, the Russian Defense Ministry said. If confirmed, it would mark the first attack ...

President-elect Donald Trump has attacked the bill, claiming in April that the United States shouldn’t be “giving [Taiwan] ...