“Let’s work out a good deal! You don’t want to be responsible for slaughtering thousands of people, and I don’t want to be responsible for destroying the Turkish economy — and I will. I’ve already given you a little sample with respect to Pastor Brunson,” Trump wrote in the letter, referring to sanctions the Treasury Department previously imposed on senior Turkish officials for the detention of an American evangelical clergyman.

“I have worked hard to solve some of your problems. Don’t let the world down. You can make a great deal,” he continued, adding that Kurdish General Mazloum Kobani of the Syrian Democratic Forces “is willing to negotiate with you, and he is willing to make concessions that they would never have made in the past.”

“History will look upon you favorably if you get this done the right and humane way. It will look upon you forever as the devil if good things don’t happen,” the president concluded. “Don’t be a tough guy. Don’t be a fool! I will call you later.”

The letter is dated last Wednesday, Oct. 9 — the same day Erdoğan tweeted that Turkey had begun its offensive into Syria. The White House had announced in a weekend statement three days earlier that Turkey would “soon be moving forward with its long-planned operation.”