History of Australia (1901–45) from Australian courts to the British Privy Council in London. Most important, the Act transferred into Australian hands full control of all Australia's constitutional documents. History of Australia (1901–45) The history of Australia from 1901–1945 begins with the federation of the six colonies to create the Commonwealth of Australia. The young nation joined Britain in the First World War, suffered through the Great Depression in Australia as part of the global Great Depression and again joined Britain in the Second World War against Nazi Germany in 1939. Imperial Japan launched air raids and submarine raids against Australian cities during the
Asian and Pacific theatre of World War I on Germany. The German and Austro-Hungarian concessions in Tientsin and Hankow were occupied and their nationals detained. An even more serious plot was Germany's funding of the Constitutional Protection Movement, which geographically split China into two rival governments for eleven years. Asian and Pacific theatre of World War I The Asian and Pacific theatre of World War I consisted of various naval battles and the Allied conquest of German colonial possessions in the Pacific Ocean and China. The most significant military action was the careful and well-executed Siege of Tsingtao in what is now China, but smaller actions were also