President Trump on Monday doubled down on his unexpected decision late Sunday night to pull U.S. troops out of northern Syria, leaving America’s Kurdish allies to fend for themselves against ISIS and an imminent attack from Turkey. Despite widespread backlash for the snap decision—even from a Fox & Friends host—Trump declared his inimitable forethought and threatened to destroy Turkey’s economy if they attack the U.S. military’s Kurdish allies, as they intend to do.

“As I have stated strongly before, and just to reiterate, if Turkey does anything that I, in my great and unmatched wisdom, consider to be off limits, I will totally destroy and obliterate the Economy of Turkey (I’ve done before!). They must, with Europe and others, watch over... the captured ISIS fighters and families,” Trump tweeted. The president then reiterated his claims that the U.S. has taken out “100% of the ISIS Caliphate.” Trump also claimed caliphate obliteration in the official White House press release, but left Turkey to manage the aftermath. “Turkey will now be responsible for all ISIS fighters in the area captured over the past two years in the wake of the defeat of the territorial “Caliphate” by the United States,” reads the press release. “It is time now for others in the region, some of great wealth, to protect their own territory,” Trump tweeted Monday.