Sgt. 1st Class Sean Bach, left, senior enlisted medic with 1st Battalion, 63rd Armor Regiment, 2nd Advise and Assist Brigade, 1st Infantry Division, United States Division – Center and a Ft. Worth, Texas, native, leads a group of first responders to the site of a simulated improvised explosive device attack on a Humvee during medical training July 1, at Camp Liberty, Iraq. “Soldiers need to experience using their tourniquets in real world scenarios to have any real proficiency,” said Bach.