190627-N-ID678-020 ANNAPOLIS, Md. (June 27, 2019) Captain Thomas R. Buchanan, United States Navy Commandant of Midshipmen, administers the oath of office to the incoming Midshipmen of the Class of 2023 during Induction Day 2019. I-Day marks the beginning of a demanding six-week indoctrination period called Plebe Summer, intended to transition the candidates from civilian to military life.�As the undergraduate college of our country's naval service, the Naval Academy prepares young men and women to become professional officers of competence, character, and compassion in the U.S. Navy and Marine Corps. (U.S. Navy photo by Kenneth D. Aston Jr /Released)