President Donald Trump asserted on Tuesday that many “bad things” would have befallen Russia if it were not for him, warning that Russian President Vladimir Putin is “playing with fire!”

“What Vladimir Putin doesn’t realize is that if it weren’t for me, lots of really bad things would have already happened to Russia, and I mean REALLY BAD. He’s playing with fire!” Trump declared in the Truth Social post.

The tweet was responded to by Dmitry Medvedev, the deputy chairman of the Security Council of Russia and former Russian president, in another social media post on Tuesday.

“Regarding Trump’s words about Putin ‘playing with fire’ and ‘really bad things’ happening to Russia. I only know of one REALLY BAD thing — WWIII. I hope Trump understands this!” Medvedev wrote.

“Like any criminal, Russia can only be constrained by force. Only through strength — the strength of the United States, of Europe, of all nations that value life — can these attacks be stopped and real peace achieved,” Zelenskyy declared in the post.