At first, I didn’t understand why Australia joined WW1 as well. Australia should not have been involved in the war in the first place, the loss outweighs the benefits, there is never a winner in a war. It’s not the about who won, but the one who lost the least. Australia just started as a Federation, with relatively little resources to go with, and a grand future of revolution ahead of them, yet they found reasons to set that back and join the war.
Despite being a Federation since 1901, Australia is still considered part of the British Empire. On the 4th of August 1914, The French, Russian and British Empire signed an agreement on a united front, putting aside all their previous conflict of interest, in order to defend themselves on the oncoming attack from the German Empire and her allies. On one hand, Australia was indeed obliged to aid the British Empire in the war efforts. Australia’s mother country, Britain, ends up pressuring them to join and fight for their cause.