Tensions have exploded in recent days between President Trump and a batch of current and former military officials who are critical – to varying degrees – of how he's handled the unrest in the wake of George Floyd's death in the custody of the Minneapolis Police Department.

The officials, including Trump's current Secretary of Defense Mark Esper, his former Secretary of Defense Jim Mattis and several others, have either implicitly broken with Trump in statements on policy or explicitly denounced his leadership — and Trump has fired back.

"Probably the only thing Barack Obama & I have in common is that we both had the honor of firing Jim Mattis, the world’s most overrated General," Trump said in a pair of tweets Wednesday night. "I asked for his letter of resignation, & felt great about it. His nickname was 'Chaos', which I didn’t like, & changed to 'Mad Dog.'"

Despite his claim, Trump did not give Mattis that nickname on his own. He has been referred to as "Mad Dog" as far back as 2004.

Trump added: "His primary strength was not military, but rather personal public relations. I gave him a new life, things to do, and battles to win, but he seldom 'brought home the bacon'. I didn’t like his 'leadership' style or much else about him, and many others agree. Glad he is gone!"

Trump was reacting to an extraordinary rebuke from Mattis that was published by The Atlantic.

"I have watched this week’s unfolding events, angry and appalled," Mattis said. "Donald Trump is the first president in my lifetime who does not try to unite the American people — does not even pretend to try. Instead, he tries to divide us... We are witnessing the consequences of three years of this deliberate effort. We are witnessing the consequences of three years without mature leadership."

And Mattis is far from the only military figure to contradict Trump in recent days. John Allen, a former four-star Marine general and current president of the Brookings Institution, a D.C. think tank, wrote an op-ed for Foreign Policy Thursday morning excoriating Trump for his actions on Monday, which included a photo-op at St. John's Episcopal Church near the White House.

The area around the church had moments before been forcibly cleared of protesters, though there are conflicting claims over the tactics used. Read more at FOX News