Retired Marine Gen. John Allen warned on Sunday that if Donald Trump were elected president, there would be mass unrest among the military rank and file over the policies that he would implement and pursue.

“I think we would be facing a civil military crisis, the like of which we’ve not seen in this country before,” he said.

The retired four-star general, who served as commander of the International Security Assistance Force in Afghanistan, was a featured speaker at the Democratic National Convention. And for that, Trump derided him as a failure.

Appearing on ABC’s “This Week,” Allen was asked about these attacks ― which he brushed off by noting that Trump had never served a day in his life ― and also how the lower ranks would react to Trump’s orders to reinstitute policies like torture, the targeted murdering of the family members of alleged terrorists, and the carpet-bombing of ISIS.