The 15th Infantry Division was established in November 2015, The troops were initially trained by Iraqi trainers for 6 months and then the troops entered in training sessions for a further 6 months under the coalition forces at Camp Taji.

The division is considered one of the strongest divisions in the ground forces in terms of training, equipping and arming The division was first established under the rule of Saddam Hussein.

The Division also includes an artillery battalion (light and heavy) with the field engineering battalion.

The division is equipped with Mine-resistant ambush-protected (MRAP) vehicles, such as the Armor MAXPRO, CAIMAN, and the latest version of the Humvee.

The first battle the division participated in is the battle to liberate Al-Hamra camp in the Nabai area in 2015 and also the recent battles of Mosul and later participated in the liberation of Tal Afar and took part in Iraqi–Kurdish conflict.