Lieutenant colonel

A Lieutenant Colonel is a rank of the commissioned officers, ranking above a Major and below a Colonel. The rank of Lieutenant Colonel is often verbally shortened to simply "Colonel".

A Lieutenant Cololnel typically commands a Battalion-sized unit (300 to 1,000 soldiers), with a Sergeant Major as principal non-commissioned officer assistant. A Lieutenant Colonel may also serve as a Brigade or task force Executive Officer. The navy equivalent to a Lieutenant Colonel is the rank of Commander.

{This Rank has not yet been mentioned in the Halo Universe}