Complex sentence: In March 2004, as OIF 2 began and the 82nd Airborne handed responsibility for the occupation of Anbar over to the 1st Marine Division, the Marines' Regimental Combat Team 7 (RCT-7) took the reins in the far west from the 3d ACR.
Split into simpler sentences: In March 2004, the 82nd Airborne handed responsibility for the occupation of Anbar over to the 1st Marine Division. The Marines' Regimental Combat Team 7 (RCT-7) took the reins in the far west from the 3d ACR.