Look, if you're expecting any of this to make sense you've come to the wrong place

U.S. Has No Idea How Long It Will Keep an ISIS Bride Locked Up - The Daily Beast

"Obama administration officials have said that the U.S. is engaged in a lawful conflict with ISIS, authorized by the grant of force against al Qaeda and its associates that Congress passed in 2001. ISIS has been disavowed by al Qaeda, but the administration continues to see the two groups as linked, and therefore ISIS is legally covered by the 2001 authorization, officials argue."