 It fought during the final stages of the Gallipoli campaign in late 1915 and then on the Western Front between 1916 and 1918.At the end of the war, the 28th was disbanded in 1919 but was re-raised in 1921, as a part-time unit based in Western Australia.During the Second World War, the 28th undertook defensive duties in Australia for the majority of the conflict, before seeing action against the Japanese in the New Britain campaign in 1944–1945.