A soldier with the 4th Infantry Brigade Combat Team, 1st Infantry Division pulls security during air assault training with the CAB Aug. 3 at Fort Riley. UH-60 Black Hawk and CH-47 Chinook helicopters from the Combat Aviation Brigade, 1st Inf. Div. have been used to train ground troops, as well as its own crews, for combat missions. US Army photo by Sgt. Roland Hale, CAB, 1st Inf. Div. PAO.