Two months before he leaves office, President Joe Biden has allowed the first use of U.S. - supplied long-range missiles by Ukraine for strikes inside Russia

DESPERATE to leave his mark on history, bumbling Joe Biden is hurtling America toward World War III during the final days of his disastrous presidency, top security and defense experts warn.

In a shocking lame-duck decision, the clueless commander in chief recently authorized Ukraine to strike inside Russian territory with U.S.-made long-range missiles as its fight against their neighboring nation’s invasion drags on for its 33rd month. But the alarming act has led Russia’s ruthless president, Vladimir Putin, to send 50,000 more troops — bolstered by an additional 15,000 North Korean soldiers — to the front lines in retaliation!

President-elect Donald Trump has vowed to end the war quickly

Now, sources say the reckless maneuver has motivated incoming President-elect Donald Trump, 78, to exercise his Art of the Deal!

“With just 60 days to go before Trump takes over, we are in a very vulnerable position that could evolve into a threshold of warfare the likes of World War III,” now-retired Maj. Gen. Paul E. Vallely tells GLOBE.

Ukrainian Prez Volodymyr Zelenskyy

“After Jan. 20, Trump will sit down, meet with Putin and [Ukrainian President Volodymyr] Zelenskyy, and broker a peace deal — unless there is a very serious mistake made by Ukraine that will put us on the brink of catastrophe!”