A simulated casualty receives medical attention from U.S. and Polish medical personnel during a mass casualty training exercise held Sept. 18 in Swidwin, Poland during the Jackal Stone 10 exercise. Jackal Stone 10, hosted by Poland and Lithuania this year, is an annual international special operations forces exercise held in Europe. Its objective is to enhance capabilities and interoperability amongst the participating special operations forces and as well as build mutual respect while sharing doctrinal concepts. The exercise, which is coordinated with U.S. Special Operations Command Europe, includes countries from Poland, Lithuania, Latvia, Croatia, Romania and Ukraine. (U.S. Army photo/Pfc. Jordan Johnson)