 Following the war the Australian Light Horse was again reorganised in 1921 and the 17th formed part of the 5th Cavalry Brigade of the 2nd Cavalry Division.This brigade also contained the 4th (Corangamite) Light Horse, 19th (Yarrowee) Light Horse as well as other supporting units.During the 1920s the Australian Light Horse converted from their pre-war mounted rifles role to that of cavalry modelled along British Army lines.