Complex sentence: Major General Harold Edward "Pompey" Elliott (19 June 1878--23 March 1931) was a senior officer in the Australian Army during the First World War who also served as a Senator for Victoria in the Australian parliament.
Split into simpler sentences: Major General Harold Edward "Pompey" Elliott (19 June 1878--23 March 1931) was a senior officer in the Australian Army during the First World War. After the war he served as a Senator for Victoria in the Australian parliament.