Australians during WW1

The Trigger Event:

The assassination of the heir to the Austro-Hungarian throne, Franz Ferdinand and his wife Sophie was the trigger event of World War One. Gavrillo Princip, of the Serbian secret society terrorist group: the Black Hand (which was supported by secret police and military) murdered Franz Ferdinand and his wife while they were in Bosnian city of Sarajevo.

Austria-Hungary thought Serbia issued a challenge and declared war. The Austro-Hungarian government was furious at the assassination and was determined to punish Serbia
Picture of Gavrillo Princip on the right >

Why did Australia get involved?

Australia is under British control; thus, the involvement of Australian troops were necessary. Australian troops were normally put on the front line because the British saw their own troops as more valuable. Although Australia was now a commonwealth, it's "mother country" was still Great Britain thus; it's participation in the war was only expected.
What was Australia's response to war?
Australia's response to war was a rush to enlist in the war. Many enlisted for the war because of patriosm and also war swept aside differences between a civillians and unified society from a common purpose. The Austrlian's together with New Zealand, thought they had a point to prove to the British that they were dedicated young men. They were all eager to prove the world their loyalty to Britain.

Reference: Australian History, Ersie Burke and Sarah Mirams. p. 191-199