Military Assault Command Operations (commonly abbreviated as MACO) was a United Earth military organization in service on Earth during the 2150s, prior to the founding of the Federation. The MACOs (pronounced "MAY-ko") were not associated with the Starfleet. The military official that oversaw the MACOs was General Casey. MACO posts included Atlanta, Georgia and the Janus loop. Training posts included West Point in New York. MACOs had similar weapons, training, and tactics to the special forces of a number of member nations of United Earth.