Two battalions of the IIF conducted operations in Najaf between September and December 2004. Those same two battalions plus another IIF battalion, together with other Iraqi units, were present during the Second Battle of Fallujah soon afterwards. The first significant troop increase for the IIF in 2005 was the graduation of 670 soldiers from the Taji military training base on January 18, 2005. The State Department claimed the IIF had 9,159 men assigned as of the "Iraq Weekly Status Report" for January 12, 2005.