The bombing killed 17 U.S. sailors . Four members of the military also were killed , officials said . The violence is part of the latest push to rid the country of the terror organization . It comes the same day as President Brennan 's visit to Iraq .
Four members of the military also were killed , officials said . The violence is part of the latest push to rid the country of the terror organization . It comes the same day as President Brennan 's visit to Iraq .