The Vigorous Warrior exercise series is organized by the NATO Centre of Excellence for Military Medicine every two years. It allows participating NATO and partner nations to exercise together in a realistic scenario, providing a unique opportunity to train along civilian assets, and offering nations the ability to exercise experimental doctrinal concepts, train in a multinational environment, and stress their medical assets which include first-responder, field hospital, theatre hospital, and definitive full-capability hospital care. (U.S. Army National Guard video by Spc. Ash Witherspoon)