He retired as a lieutenant colonel. The lieutenants of the colonel were the lieutenant colonels. He retired as a lieutenant colonel in 1964. A battalion is typically commanded by a lieutenant colonel. He achieved the rank of lieutenant colonel. He promoted Amin to colonel and army commander. The regiment would be commanded by a lieutenant colonel in the colonel's stead. It was under the command of Lieutenant Colonel William O. Collins. Eisenhower was promoted to the rank of permanent lieutenant colonel in 1936. The mission was led by Lieutenant Colonel (later General) Jimmy Doolittle. This included 42 officers, the highest ranking being a lieutenant colonel. The pay grade for the rank of lieutenant colonel is O-5. They would not consider a promotion to lieutenant colonel or even major. Until 1749 bandsmen were civilians hired at the expense of the colonel commanding a regiment. The impasse continued until the arrival of US Army troops commanded by Colonel Nathan Dudley.