Ukraine used US ATACMS missiles to strike Russian territory for the first time yesterday, Moscow said, in an attack regarded by Russia as a major escalation on the war’s 1,000th day.

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 ...

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

The approval of the document demonstrates Putin’s readiness to tap his nuclear arsenal to force the West to back down.

The new doctrine allows for a potential nuclear response by Moscow even to a conventional attack on Russia by any nation that ...

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 ...

Ukraine has fired six U.S.-made ATACMS into Russia, marking the first attack using the U.S.-made long-range missiles in 1,000 ...