U.S. Army 2nd Lt. Sebastian Smoak, assigned to Troop B, Regimental Engineer Squadron, 2nd Cavalry Regiment, dons his mask during the CBRN (Chemical, Biological, Radiological and Nuclear) lane at the 2014 U.S. Army Europe Best Warrior Competition, Sept. 16 at Grafenwoehr, Germany. Unique to USAREUR, the Best Junior Officer Competition is designed to help young leaders keep their minds and skills sharp by pushing them mentally and physically in a challenge that promotes the knowledge, aptitude, leadership traits and esprit de corps that are fundamental for up-and-coming leaders. (U.S. Army photo by Visual Information Specialist Markus Rauchenberger/released)