Putin’s endorsement of the new nuclear deterrent policy comes on the 1,000th day after he sent troops into Ukraine, on Feb. 24, 2022.

President Vladimir Putin on Tuesday formally lowered the threshold for Russia’s use of its nuclear weapons, a move that follows U.S. President Joe Biden’s decision to let Ukraine strike targets inside Russian territory with American-supplied longer-range missiles.

A decree signed by the Russian leader, though long-planned, came days after President Biden authorized the use of U.S.-supplied long-range missiles by Ukraine for strikes inside Russia.

President Vladimir Putin has updated Russia’s nuclear doctrine, two days after his American counterpart Joe Biden granted Ukraine permission to strike targets deep inside Russia with US-made weapons.

Russian President Vladimir Putin on Tuesday approved an updated nuclear doctrine, saying that Russia could consider using nuclear weapons if it was subject to a conventional missile assault on it supported by a nuclear power.

Putin lowered the bar for a nuclear attack after the US lifted a ban on Ukraine using long-range missiles. Ukraine carried out its first strike with the weapons.

Russian President Vladimir Putin on Tuesday lowered the threshold for a nuclear strike in response to a broader range of conventional attacks, and Moscow said Ukraine had struck deep inside Russia with U.

Ukraine launched American-made ATACMS missiles at Russia shortly before President Vladimir Putin lowered his country’s threshold for authorizing a nuclear strike, Moscow said Tuesday. The Russian Defense Ministry said its forces shot down five out of six Army Tactical Missile System projectiles,