Battalion

A Battalion is a UNSC Military Organization of the UNSC Army and Marine Corps consisting of two to six companies, anywhere from 500 to one thousand men. This unit is generally considered the smallest unit able to conduct independent operations.

Known Battalions

 * 2nd Orbital Drop Shock Trooper Battalion
 * 7th Orbital Drop Shock Trooper Battalion
 * M-EDF 9/21/1