4th Brigade (Aviation), 1st Armored Division

4th Brigade (Aviation), 1st Armored Division "Iron Eagle"
Headquarters and Headquarters Company
3rd Squadron (Heavy Attack-Reconnaissance), 6th Cavalry Regiment "Heavy Cav"
1st Battalion (Attack), 501st Aviation Regiment "Iron Dragons"
2nd Battalion (General Support), 501st Aviation Regiment "Desert Knights"
3rd Battalion (Assault), 501st Aviation Regiment "Apocalypse"
127th Aviation Support Battalion "Work Horse"