The Maneuver Captain's Career Course (MCCC or MC3) is a military training and education course primarily for U.S. Army infantry and armor officers. Organized under the Maneuver Center of Excellence (MCoE) at Fort Benning, Georgia, the course is 22 weeks long. While the course's students consist mostly of U.S. Army maneuver-branch captains and senior first lieutenants, several U.S. Marine Corps captains and officers from allied nations also attend. MCCC's mission is to prepare students for the leadership, training, and administrative requirements of a successful company commander and for the execution of the tactical planning responsibilities of Battalion S3s.