Since May, Washington has also allowed Kyiv to use shorter-range American rockets to strike targets in Russia across the border from Ukraine’s northeastern Kharkiv region. Before President Joe Biden green-lighted that decision, Putin made similar nuclear threats, warning the move could lead to “serious consequences” for “small and densely populated countries.” It did not.

“Again and again, we prove that when you cross a fake red line – nothing really happens,” said Alberque. Still, he said the threats were enough to prevent the West from giving Ukraine what it needed to defend itself.

Although the threats have yet again intensified following last week’s developments, Albuquerque said there is little reason to suspect that this time really is different. The prospect of an incoming Donald Trump administration – long assumed to be Putin’s desired outcome – means Russia is even less likely than usual to make good on its threats.

“The (risk) that they’re suddenly going to do something that would risk actual intervention by the United States or by NATO allies – or would fundamentally change global attitudes towards the conflict – is relatively low,” said Alberque.