Spc. Brian Medley, early warning systems operator, Headquarters and Headquarters Battery, 4th Battalion, 5th Air & Missile Defense Regiment and Terre Haute, Ind., native, tightens the strap of a litter occupied by a simulated casualty during a Combat Life Saver training exercise here April 4. Medley and three other soldiers from his unit participated in the CLS course to ready themselves for any situation where medical assistance is needed. Third Army is staying ready tonight by ensuring its soldiers are qualified and efficient in CLS techniques.