US President Joe Biden said on Tuesday that Russia would be making a “serious mistake” by launching a “false flag” nuclear attack on Ukraine.

US President Joe Biden said on Tuesday that Russia would be making a “serious mistake” by launching a “false flag” nuclear attack on Ukraine, saying it was unclear whether such an operation was already underway.

The Kremlin said on Monday that Ukraine planned to use a radioactive “dirty bomb” against Russian forces, as well as blaming Russia for the use of weapons of mass destruction.

“On Russia’s dirty bomb accusations related to Ukraine: Do you think this is the beginning of a false flag operation?” a reporter asked President Biden, as the president received a Covid-19 booster.

“Is Russia preparing to deploy a dirty bomb or a nuclear weapon?” the journalist asked, to which Joe Biden replied: “I spent a lot of time talking about it today.”

“Let me just say: Russia would be making a serious and unbelievable mistake if it used a tactical nuclear weapon,” Biden said. “I still do not guarantee that it is a false flag operation. I don’t know, but it would be a serious mistake, a very serious mistake.”

The US, UK and French governments responded to the Russian claim with a joint statement saying “the world would see through any attempt to use this claim as a pretext for escalation.”

At a Pentagon briefing on Tuesday, Gen. Patrick Ryder said: “From the US point of view, the accusations that Ukraine is building a dirty bomb are false.”

“However, we have not seen at this time any indication that Russia has made a decision or intends to employ nuclear weapons or a dirty bomb [either],” Ryder added.

Russian President Vladimir Putin signed a law earlier this month to annex four partially occupied Ukrainian provinces, despite battlefield setbacks amid a Ukrainian counteroffensive.

Russian troops invaded Ukraine on February 24 after Joe Biden warned for weeks about a possible false flag justification for the conflict. Putin previously annexed Crimea in 2014 and backed pro-Russian rebels in eastern Ukraine.

Categorized in: