U.S. Marine Corps Staff Sgt. Joshua J. Knights, a demolition instructor with the Marine Corps Engineer School, helps a student from the Johnson Primary School go up the ladder of a CAT 3 Buffalo unit during the Johnson Primary School Career Day Observance on Camp Lejeune, N.C., April 24, 2015. The career day observance provided students with insight and information about the chosen occupations of some of the parents by providing Service members and static displays of the equipment used by the military to perform their jobs on a daily basis. (U.S. Marine Corps photo by Cpl. Carolyn P. Pichardo, MCI-East Combat Camera, Camp Lejeune/Released)