U.S. Pentagon chief Jim Mattis arrived in the Philippines Monday for an annual meeting of regional defense ministers, as the Philippines government declared victory in its months-long battle to dislodge ISIS-allied militants in the city of Marawi. Human rights groups say the fighting displaced over 200,000 people and left more than 1,000 civilians dead. Over the summer, the Pentagon confirmed U.S. troops assisted the fight with training, aerial surveillance and electronic eavesdropping.