The soldiers of the 101st Airborne Division used painted symbols and tick marks on the sides of their helmets to be able to quickly identify "who was who" in case a parachute drop was bungled and units ended up widely scattered or intermixed. Interestingly, the paratroopers of Saving Private Ryan did not have the battalion identifier (tick mark at 12, 3, 6, or 9 o'clock in relation to the symbol) painted on their helmets; Steven Spielberg corrected this for Band of Brothers. The radio code names of units in the 101st Airborne Division started with the letter "K."