A group of GOP lawmakers wants President Trump to transfer more than 700 “battle-hardened terrorists” detained by the Syrian Democratic Forces to the military detention facility at Guantanamo Bay, a move that comes as the U.S. looks to withdraw U.S. troops from Syria.

In a letter to Trump on Tuesday, Sens. Tom Cotton of Arkansas, Marco Rubio of Florida, John Cornyn and Ted Cruz, both of Texas, urged Trump to move the prisoners to the detention facility in Cuba where they can face justice.