Lieutenant colonel
Armed force ranking
In the United States Army, Marine Corps, Air Force and Space Force, lieutenant colonel is a field-grade officer rank, just above the rank of major and just below the rank of colonel. It is equivalent to the naval rank of commander in the other... Wikipedia
Abbreviation: US Army: LTC; USMC: LtCol; USAF: Lt Col
Rank: Lieutenant colonel
Service branch: Army; Marine Corps; Air Force; Space Force