U.S. Air Force Tech. Sgt. Stacey Lockwood, of the

U.S. Air Force Tech. Sgt. Stacey Lockwood, of the 119th Wing, right, uses an automated external defibrillator (AED) as Staff Sgt. Katherine Robbins, of the 119th Medical Group, performs cardiopulmonary resuscitation (CPR) on a high-tech human simulator mannequin during a Heart attack training scenario at the North Dakota Air National Guard Base, Fargo, North Dakota, June 2, 2015. Lockwood is receiving the training because she is a fitness testing monitor and Robbins is doing it for review as a member of the medical group. The training is being conducted by the Simulation in Motion-North Dakota (SIMND) Program, which is operated by the North Dakota Department of Health and the University of North Dakota, in an effort to provide realistic pre-hospital and emergency care to medical personnel throughout the state. (U.S. Air National Guard photo by SMSgt. David H. Lipp/Released)