The Second Battle of Fallujah—code-named Operation Al-Fajr (Arabic: الفجر "the dawn") and Operation Phantom Fury—was a joint American, Iraqi, and British offensive in November and December 2004, considered the highest point of conflict in Fallujah during the Iraq War. It was led by the U.S. Marine Corps against the Iraqi insurgency stronghold in the city of Fallujah and was authorized by the U.S.-appointed Iraqi Interim Government. The U.S.