Putin is the primary decision-maker on the use of Russia's nuclear arsenal. The doctrine said any attack by a non-nuclear power supported by a nuclear power would be considered a joint attack, and that any attack by one member of a military bloc would be considered an attack by the entire alliance, it said.

President Vladimir Putin said on Thursday that the Ukraine war was escalating towards a global conflict after the United States and Britain allowed Ukraine to hit Russia with their weapons, and warned the West that Moscow could strike back.

Russian President Vladimir Putin formally lowered the threshold for his country's use of nuclear weapons Tuesday, after the U.S. allowed Ukraine to strike inside Russia using American missiles.

President Vladimir Putin said on Friday that Russia would keep testing its new Oreshnik hypersonic missile in combat and had a stock ready for use. Putin was speaking a day after Russia fired the new intermediate-range weapon into Ukraine for the first time,

In a televised address, Putin intensifies rhetoric and outlines new military threats, signalling a potentially dangerous shift in the conflict

President Vladimir Putin said Friday that Russia will continue to test and start mass-producing the hypersonic ballistic missile that it fired at Ukraine Thursday.

Tensions in Ukraine spike after Russia fires a new hypersonic missile at the Ukrainian city of Dnipro. With less than two months before President-elect Donald Trump takes office, the fate of vital U.S.