Troopers assigned to 2nd Squadron, 2nd Cavalry Regiment, begin a tactical formation with their Stryker Combat Vehicles while participating in a mounted combined arms rehearsal with soldiers belonging to the Romanian Land Forces, during Exercise Wind Spring 2015 at Smardan Training Area, Romania, Apr. 18, 2015. This rehearsal will allow both units to learn each other's vehicle capabilities while also sharing different tactics and strategies for success on the battlefield in support of Opertion Atlantic Resolve-South. (U.S. Army photo by Sgt. William A. Tanner/released)