Command Sergeant Major Robert Koelling is from Jefferson City, MO. He graduated from Helias Catholic High School in May 1989. He enlisted in the Missouri National Guard in October 1992.
 
CSM Koelling holds several Military Occupational Specialties which include 31B-Military Policeman, 88M-Motor Transport Operator, and 15P-Flight Operations Specialist. CSM Koelling has held numerous positions and assignments and currently serves as the State Command Sergeant Major. He has also served as Command Sergeant Major for the 1107th Aviation Group in Springfield, Missouri; Command Sergeant Major for the 935th Aviation Support Battalion in Springfield, Missouri; J3 Sergeant Major for Joint Forces Headquarters in Jefferson City, Missouri; Senior Operations NCO for the 35th Combat Aviation Brigade in Sedalia, Missouri; Operations Sergeant Major for the 140th Regional Training Institute in Fort Leonard Wood, Missouri; G3/5/7 Sergeant Major for Joint Forces Headquarters in Jefferson City, Missouri; Senior Operations NCO for the 835th Combat Service Support Battalion in Jefferson City, Missouri; and Senior Aviation Operations Sergeant for the 3/135th Theater Aviation Battalion, Lebanon, Missouri.
 
CSM Koelling has deployed in support of Operation Iraqi Freedom.
 
CSM Koelling’s military education include the United States Army Sergeants Major Academy Class 42, Advanced Noncommissioned Officer Course, Basic Noncommissioned Officer Course, and Primary Leadership Development Course.
 
CSM Koelling’s awards and decorations include the Meritorious Serve Medal (3rd Award), Army Commendation Medal (2nd award), Iraqi Campaign Medal, Global War on Terrorism Medal, Combat Action Badge, Master Aircraft Crewmember Badge, Drivers Badge, and various campaign, unit, and service awards.