The Iraq Assistance Group (IAG) was a U.S. military command underneath Multi-National Corps-Iraq that coordinated military transition teams assigned to the Iraqi Security Forces (ISF) including the Iraqi Army, Federal Police, Department of Border Enforcement, Ports of Entry Directorate and provincial police. These teams provide partnership, mentoring and training to assist their ISF partners in achieving full operational effectiveness and facilitating the transition of internal security to Iraqi control. The Iraq Assistance Group itself was a joint command formed from the U.S. Army's 1st Infantry Division and composed of mostly Army soldiers but also including a sizable contingent of sailors, airmen and marines as well as members of foreign militaries.