Iraqi forces’ hopes of recapturing the city of Ramadi from the Islamic State have stalled, largely because their efforts to cut resupply routes into the city of nearly 1 million have failed.

Iraqi planners had hoped a cordon around the city, the capital of Anbar province, Iraq’s largest, would prevent the Islamic State from being able to prepare for a long siege. But local military commanders, residents and analysts say the Iraqi forces were unable to maintain the cordon and that the Islamic State has been able to resupply.

Iraqi officials have announced a new operation to retake the city nearly every week since the Islamic State routed its defenders last spring. But despite the vows, it’s become clear that the government has neither the manpower nor the training to conduct an offensive in a huge city that remains packed with civilians. The Islamic State apparently has succeeded in keeping civilians from fleeing. […]