U.S. Marines attending the Infantry Officers Course (IOC) ride in an MV-22B Osprey for a reinforcement during an exercise near Yuma, Arizona. Video shows IOC students coordinate with Marine Aviation Weapons and Tactics Squadron One instructors to conduct the command operations center activities, test communications, and utilize innovative technologies.

Infantry Officers are central to the role of the Marine Corps as an expeditionary force. They are responsible for training their Marines for every variety of ground combat mission in any environment. They gather and evaluate intelligence on enemy forces, develop offensive and defensive battle plans and command their infantry unit’s use of weapons and equipment.