![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/US-O5_insignia.svg/langsimple-640px-US-O5_insignia.svg.png&w=640&q=50)
Lieutenant colonel
military rank (OF-4) / From Wikipedia, the free encyclopedia
Lieutenant colonel is a rank of commissioned officer in the armies, most marine forces and some air forces of the world. It typically ranks above a major and below a colonel. The rank of lieutenant colonel is often shortened to simply "colonel" in conversation and in unofficial correspondence.[1] A lieutenant colonel is typically in charge of a battalion in the army.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/6/6e/US-O5_insignia.svg/320px-US-O5_insignia.svg.png)
Lt. Colonel rank insignia for US Army, Air Force and Marines