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
Declarations of war during World War I 1907 (or Hague II). For the diplomatic maneuvering behind these events, which led to hostilities between nations during World War I, see the article entitled Diplomatic history of World War I. Below is a table showing the "Outbreaks of Wars between Nations" which occurred during World War I. Indicated are the dates (during the immediate build-up to, or during the course of, World War I), from which a "de facto" state of war existed between nations. The table shows both the "Initiator Nation(s)" and the nation at which the aggression was aimed, or "Targeted Nation(s)". Events listed include those in