“I will…quickly and decisively bomb the hell out of ISIS,” Trump, who would name legendary Marine Corps Gen. James Mattis as secretary of defense, promised. “We will not have to listen to the politicians who are losing the war on terrorism.”
Just over a year later, ISIS has been routed from Iraq and Syria with an ease and speed that’s surprised even the men and women who carried out the mission. Experts say it’s a prime example of a campaign promise kept. President Trump scrapped his predecessor’s rules of engagement, which critics say hamstrung the military, and let battlefield decisions be made by the generals in the theater, and not bureaucrats in Washington.