Arriving from Baghdad, federal police forces create a barricade to protect the Habaniyah military base near Ramadi, Iraq, in eastern Husaybah town, 8 kilometers (5 miles) east of Ramadi on Monday, May 18, 2015. Islamic State group militants likely killed up to 500 Iraqi civilians and soldiers and forced 8,000 people to flee from their homes as they captured Ramadi, a provincial official said Monday, while the extremists went door-to-door looking for policemen and pro-government tribesmen.