12 October 2003, 3-153rd IN and E/151st CAV activated for Operation Iraqi Freedom II and deployment as elements of the 39th Brigade (separate) with the 1st Cavalry Division to Iraq.

Troop E, 151st CAV spent much of the deployment attached to 3-153rd Infantry and was responsible for patrolling the city of Hussainiyah, a town of 500,000 about 12 miles north of Baghdad.

E/151st Cavalry had one platoon of troopers from Company C, 1st Battalion, 102nd Infantry, Connecticut National Guard attached to for OIF II.

TF 1-151st CAV conducted over 700 tactical convoy security missions, without losing a single soldier due to enemy activity.

TF 1-151st CAV suffered one non-combat related casualty when a soldier died while working on a vehicle in the motor pool.

The original task organization of the 1-151st as directed by 39th IBCT during the predeployment training was as follows: Once the 1-151st reached Talilli Airbase, it intillally fell under the tactical control of the 1st Brigade, 82nd Airborne Division.

The Polestar, adapted from the compass rose, highlights the leadership and direction while alluding to the North Star, commemorating the unit's WW II service in the Aleutians.