U.S. Marine officer candidates participate in physical

U.S. Marine officer candidates participate in physical training exercises at the Officer Candidate School, Marine Corps Base Quantico, Va., Jan. 12, 2018. Candidates must go through three months of intensive training to evaluate and screen individuals for the leadership, moral, mental, and physical qualities required for commissioning as a U.S. Marine Corps officer. (U.S. Marine Corps photo by Cpl. Brooke Deiters)