lieutenant colonel 
noun
A rank of officer in the army and the US air force, above major and below colonel.Placing military advisers with the rank of major or lieutenant colonel at the Colombian Army's general headquarters is the next step....
- Four to six companies make up a battalion, which is normally commanded by a lieutenant colonel with a command sergeant major as principal NCO assistant.
- Depending on the intensity of the conflict, today, there can be a colonel or a lieutenant colonel coordinating airlift and air-refueling forces.
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