The Kremlin has not commented on Trump's Greenland ambitions, with analysts saying they serve a bigger purpose for Moscow.

Ukraine's commander in chief said December was the first month that its drones "neutralized" roughly as many Russians as were called up.

The lightning U.S. operation to capture Venezuelan leader Nicolas Maduro can be seen as both a benefit and a burden for Russian President Vladimir Putin, whose forces botched an attempt to capture Ukraine’s capital and topple its leader at the start of Moscow's invasion nearly four years ago.

Russia doubled down on its longstanding position of declaring Western forces in Ukraine “legitimate targets” on Thursday, days after France and the UK pledged to send troops there in the event of a peace deal.

President Trump’s efforts to court President Vladimir V. Putin of Russia are rife with contradictions about stability and displays of American power.

The U.S. striking Venezuela and capturing its leader has practical implications for China, Russia, Iran and Cuba, and it also sends messages to each nation.

Even at the height of their Cold War nuclear rivalry, the United States and the Soviet Union thrashed out a series of treaties to keep the arms race from spiralling out of control.

After a weekslong chase across the Atlantic, the U.S. took over the Bella 1 in an operation that defied Russian warnings.