Russian President Vladimir Putin has warned NATO alliance leaders that a move to lift restrictions on Ukraine’s use of longer-range Western missiles to strike deep inside his country would be considered an act of war.

The head of NATO’s military committee says that Ukraine has the solid legal and military right to strike deep inside Russia to gain combat advantage, reflecting the beliefs of a number of U.S. allies.

NATO Secretary General Jens Stoltenberg is sceptical of Russian leader Vladimir Putin's threats, which come amid discussions about allowing Ukraine to launch long-range missiles deep into Russia. Source: Stoltenberg in an interview with The Times,

The outgoing head of NATO Jens Stoltenberg said on Monday he welcomed talks on Ukraine's use of long-range missiles to strike inside Russian territory, but any decision on the issue would have to be made by individual allies.

Ukraine would have a good military reason to strike deeper into Russia using Western weapons, a senior NATO military official said on Saturday.

Jens Stoltenberg, the outgoing NATO Secretary General, has revealed details surrounding his last meetings with the Russian side before its full-scale invasion of Ukraine. Source: Stoltenberg in an interview with the German media outlet FAS,

Nato will be at war with Russia if Western countries allow Ukraine to use long-range missiles deep inside Russian territory, Vladimir Putin warned. The Russian president claimed the programming of Western missiles would have to be done by Nato military personnel - bringing the organisation into direct confrontation with the Kremlin.

The Kremlin on Wednesday described as "dangerous" comments by Jens Stoltenberg, the outgoing head of NATO, that a decision by the West to allow Ukraine to use Western long-range weapons to strike Russia would not be a red line that would prompt an escalation by Moscow.