Russia reasserts right to use nuclear weapons in Ukraine

Dmitry Medvedev, a former Russian president who is deputy chairman of the country’s security council, said Moscow could strike against an enemy that only used conventional weapons while Vladimir Putin’s defence minister claimed nuclear “readiness” was a priority, according to guardian.com on Saturday.

The comments on Saturday prompted Ukraine’s president, Volodymyr Zelenskiy, in an appearance by video link at Qatar’s Doha Forum to warn that Moscow was a direct threat to the world.

“Russia is deliberating bragging they can destroy with nuclear weapons, not only a certain country but the entire planet,” Zelenskiy said.

Putin established the nuclear threat at the start of the war, warning that western intervention would reap “consequences you have never seen”.

Western officials have said the threats may be simply an attempt to divert attention from the failure of Putin’s forces to secure a swift occupation of the Ukrainian capital, Kyiv, and to make advances in other key areas of the country.

An adviser to Ukraine’s defence ministry, Markian Lubkivskyi, claimed on Saturday that Russia would soon lose control of the southern city of Kherson, the first major centre to fall to the Kremlin since the war began on 24 February.

Russia has approximately 6,000 nuclear warheads – the largest stockpile of nuclear weapons in the world. In an interview on Saturday, Medvedev said Russia’s nuclear doctrine did not require an enemy state to use such weapons first.

He said: “We have a special document on nuclear deterrence. This document clearly indicates the grounds on which the Russian Federation is entitled to use nuclear weapons. There are a few of them, let me remind them to you: number one is the situation, when Russia is struck by a nuclear missile. The second case is any use of other nuclear weapons against Russia or its allies.

“The third is an attack on a critical infrastructure that will have paralysed our nuclear deterrent forces. And the fourth case is when an act of aggression is committed against Russia and its allies, which jeopardised the existence of the country itself, even without the use of nuclear weapons, that is, with the use of conventional weapons.”

Medvedev added that there was a “determination to defend the independence, sovereignty of our country, not to give anyone a reason to doubt even the slightest that we are ready to give a worthy response to any infringement on our country, on its independence”.

Russia’s defence minister, Sergei Shoigu, who had not been seen for 12 days before a brief appearance on Friday and an address to his generals on Saturday, also spoke about the nuclear threat contained within Russia’s arsenal.