A retired general is calling President Donald Trump's latest threat a "war crime" if he were to follow through on the pledge. Trump posted on TruthSocial Tuesday morning, "A whole civilization will die tonight, never to be brought back again. I don’t want that to happen, but it probably will. However, now that we have Complete and Total Regime Change, where different, smarter, and less radicalized minds prevail, maybe something revolutionarily wonderful can happen, WHO KNOWS? We will find out tonight, one of the most important moments in the long and complex history of the World. 47 years of extortion, corruption and death, will finally end. God Bless the Great People of Iran!"Speaking to CNN about the post, retired Gen. Steve Anderson said that Americans already knew Trump "was a pretty bad president, but now we know that he's an absolutely terrible commander in chief as well. I mean, he continues to vacillate. It offers contradictory messaging about what's going on."Even in the TruthSocial post, Trump is saying "God Bless the Great People of Iran" after threatening to kill them all. "Does he support the Iranian people? Does he not? Does he want regime change? Does he not? [Are] the allies with us? Does he need them? Does he not? I mean, it goes on and on and on," the retired general told CNN. "This guy is just not competent in terms of leading this force. He said he has not set clear objectives — clear definable objectives that the military can truly execute," said Anderson.Trump's deadline is 8 p.m. EDT on Tuesday, but the general expects Trump will back down. And I think that at 8 p.m. tonight, I believe that he'll figure out a way to either extend the deadline, because there's no way that he can do what he says he's going to do, which is to bomb every single civilian target in the theater and in Iran," he said. Global Affairs Analyst Kimberly Dozier explained that striking civilians and civilian infrastructure puts Trump in "war crimes territory."If "you unduly harm civilians moving forward, if the U.S. does that, no one is going to want to fight together with U.S. forces," she warned.Anderson agreed, saying that if Trump makes good on the promise, "it would be the commitment of a great war crime." "I'm old enough to remember the Nuremberg trials and how we've held the Germans accountable after what they — the atrocities they committed during World War II,' he said. "And I'd hate to think, you know, five, ten years from now, we'd be doing the same kind of thing with American soldiers and leaders ... [about] decisions that were being directed by the president of the United States that are illegal."