Putler pulled the nuclear card out again does he really want 200 cruise missiles raining down on Moscow all at once?
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It's the question we've been asking ever since President Vladimir Putin ordered the full-scale Russian invasion of Ukraine. In this war, would the Kremlin go nuclear?
President Joe Biden isn't ruling it out.
"I worry about Putin using tactical nuclear weapons," the US president said this week. He believes the danger is "real".
I don't know whether President Biden reads the Russian magazine Profile. If he does, you can understand why he's worried.
Last week, Profile published an article by prominent Russian foreign and defence policy expert Sergei Karaganov. The hawkish Mr Karaganov is honorary chairman of the Presidium of the Council on Foreign and Defence Policy. In short, he's well-connected to those in power here.
His argument goes like this. In order to "break the West's will", Russia "will have to make nuclear deterrence a convincing argument again by lowering the threshold for the use of nuclear weapons".
"The enemy must know that we are ready to deliver a pre-emptive strike in retaliation for all of its current and past acts of aggression in order to prevent a slide into global thermonuclear war.
"But what if they do not back down? In this case, we will have to hit a bunch of targets in a number of countries in order to bring those who have lost their mind to reason."
Since last year, we've grown used to nuclear sabre-rattling from Moscow.
And President Putin has confirmed that Russia has already stationed a first batch of tactical nuclear weapons in Belarus,
a move the Russian leader says is designed to remind anyone "thinking of inflicting a strategic defeat on us".
But arguing the pluses of a pre-emptive nuclear strike on the West? That's a whole new level.
Clearly, not everyone in Russia is on board with such an idea.
Today's edition of the business daily Kommersant features an article entitled "Nuclear War is a bad way of resolving problems".
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https://www.bbc.com/news/world-europe-65976256