 The battalion was assigned to the 9th Brigade, 2nd Division, upon its re-establishment.Initially, the Citizens Force was maintained through a system of compulsory service, however, in 1929–30, after the election of the Scullin Labor government, the Citizens Force was reorganised as the "Militia", and was maintained on a volunteer only basis.Throughout the 1930s, as a result of manpower shortages and the austerity measures that resulted from the economic hardships of the Great Depression, the unit was amalgamated with the 1st Battalion.