 The hitherto unallocated 55th Cavalry Brigade included the 109th (Tennessee) and 110th (Massachusetts) Cavalry Regiments and was organized throughout the 1920s.By 1927 the 23rd's allocation was reduced to the states of the Fourth and Eighth Corps Areas.The elements of the division conducted squad and platoon training at their armories and troop, squadron, and brigade training at annual summer camps.