One Iraqi begged a retired Marine general he had gotten to know during the war: “Come quickly or we’re all dead.”

Retired Marine Gen. John Allen, put in charge by President Barack Obama of assembling the international coalition to fight Islamic State, gets the desperate notes for help in his personal email account. They are “heart-wrenching,” says Gen. Allen, who forwards them to the U.S. embassy in Baghdad and military officers running airstrikes against Islamic State.
Maj. Gen. Larry Nicholson, twice the Marine commander in Fallujah, says the Iraqis “did so much for us” and are paying a horrible price for it. In replies, he urges the Iraqis to stay safe and strong. The retired general who got the plea to “come quickly” has responded four times but heard nothing.

Like other U.S. military officers and diplomats who got information, support and even friendship from Iraqis during the war, Mr. Weston feels helpless and guilty about those left behind. He was political adviser to the Marines in Fallujah from 2004 to 2007—and remembers the promises made to win Iraqi cooperation. They helped turn the tide in Fallujah and elsewhere.