Just had to look up a little info. on Seans new rank.
In the U.S. Army, a lieutenant colonel typically commands a battalion-sized unit (300 to 1,000 soldiers), with a Command Sergeant Major as principal NCO assistant. A lieutenant colonel may also serve as a brigade or task force Executive Officer. In the Air Force, a Lieutenant Colonel is generally a director of operations or a squadron commander in the operations group, a squadron commander in the mission support and maintenance groups, or a squadron commander or division chief in a medical group. Lieutenant colonels may also serve on general staffs and may be the heads of some wing staff departments.
In the 21st century U.S. military, the rank of lieutenant colonel is usually gained after 16–22 years of service as an officer. As most officers are eligible to retire after 20 years active service, it is the most common rank at which career officers retire.
Good job Sean.
Nige