U.S. Marines from Delta Company, Infantry Training Battalion (ITB), School of Infantry-East (SOI-E) step off on their 10K hike, Camp Geiger, N.C., Oct. 04, 2013. Delta Company is the first company at ITB with female students as part of a measured, deliberate and responsible collection of data on the performance of female Marines when executing existing infantry tasks and training events, the Marine Corps is soliciting entry-level female Marine volunteers to attend the eight week basic infantryman and infantry rifleman training courses at ITB. (U.S. Marine Corps photo by Chief Warrant Officer 2 Mancuso, Paul S. Combat Camera, SOI-E/Released)