At some point, all Army Military Transition Teams (MiTTs), received training at Fort Riley, Kansas and Camp Buehring, Kuwait.

Both the Army and Marine Corps teams then conducted their final in-theater training at what was formerly the Phoenix Academy located in Taji, Iraq.

The Phoenix Academy's mission was to give final additional training to the Military transition teams (MiTTs) before they were assigned to advise the Iraqi Armed Forces, Police or Border units.

Classes that were taught included counterinsurgency (COIN), rules of engagement, cultural awareness and the history of Iraq.

On 3 June 2009, the Iraq Assistance Group cased its colors and its functions and personnel were merged into Multi-National Corps-Iraq.