An ISIS terrorist. The terrorist group is working to send operatives to the West, according to the director of the CIA. Photo: Wikimedia Commons.

CIA Director John Brennan will tell Congress on Thursday that Islamic State militants are training and attempting to deploy operatives for further attacks on the West and will rely more on guerrilla-style tactics to compensate for their territorial losses.

In remarks prepared for the Senate Intelligence Committee, Brennan says IS has been working to build an apparatus to direct and inspire attacks against its foreign enemies, as in the recent attacks in Paris and Brussels — ones the CIA believes were directed by IS leaders.