170113-N-AZ866-103 OKINAWA, Japan (Jan. 13, 2017) Hospital Corpsman 2nd Class Nicole Davis, left, motivates Hospital Corpsman 3rd Class Kevin Aquirre, front, and Hospitalman Seaman Joanah McCoy while they low crawl during a week-long tactical combat casualty care course at U.S. Naval Hospital Okinawa, Japan. (U.S. Navy photo by Mass Communication 3rd Class Kelly M. Agee/Released)