U.S. Navy Petty Officer 3rd Class Ryan Sharpton, left, assigned to Marine Aircraft Group 40, Marine Expeditionary Brigade-Afghanistan, performs situps during a physical fitness test March 17, 2010, at Camp Leatherneck, Afghanistan. Sharpton and 38 Marines were students in the first iteration of the Marine Corps Corporals Course held at the base. The course was designed to provide Marine corporals with the education and leadership skills necessary to lead Marines.