Master Sgt. Dan Anderson, a training instructor, in red cap, provides instruction about the operation of an aircraft arresting system at the North Dakota Air National Guard Regional Training Site, Fargo, North Dakota, August 18, 2015. The aircraft arresting system provides emergency stopping capability if an aircraft experiences brake failure. The North Dakota Air National Guard Regional Training Site is one of five contingency training locations in the United States used by Air National Guard and U.S. Air Force personnel in the civil engineer career fields. I provides wartime mission training as well as proficiency training on construction practices, utility support, emergency services, maintenance and repair of base infrastructure. Four separate groups totaling about 400 people are scheduled to train at the site in the month of August in 2015. (U.S. Air National Guard photo by Senior Master Sgt. David H. Lipp/Released)