Army Spcs. Caleb Bailey and Robert Graber provide medical aid to a role-playing casualty during a mass casualty exercise in Yavoriv, Ukraine, Jan. 12, 2018. Bailey and Graber are combat medics assigned to the New York Army National Guard’s 27th Infantry Brigade Combat Team. The exercise was designed to resemble a vehicle collision and test medics readiness, capabilities, triage and treat simulated casualties before transporting them to the troop medical clinic for further care. Army National Guard photo by Sgt. Alexander Rector