U.S. Army Sgt. 1st Class Kristina Boettcher with the

U.S. Army Sgt. 1st Class Kristina Boettcher with the 7306th Medical Training and Support Battalion, San Antonio, applies mock injuries to U.K. army reserve Lt. Nick Mellis for medical evacuation training during Global Medic at Fort McCoy, Wis., June 15, 2015. Combined Joint Atlantic Serpent enhances the inoperability between international forces by exercising field medical practices while sharing equipment, protocols and battle drills in a tactical training environment. Melding CJAS with Global Medic results in the single largest field medical training exercise on the planet. Global Medic is the premier medical field training event in the Department of Defense and is the only joint accredited exercise conceived, planned and executed by Army Reserve Soldiers. Service members from multiple DoD branches train together in a joint force environment, further strengthening their abilities to serve together around the globe. (U.S. Army photo by Pfc. Christopher Martin/Released)