Why did Albert Jacka joined the army?

Albert Jacka joined the army during World War I primarily out of a sense of duty and patriotism, as many young Australians did at the time. He enlisted in 1914, motivated by the desire to contribute to the war effort and defend his country. His determination and bravery were evident in his service, particularly during the Gallipoli campaign and later on the Western Front, where he became known for his exceptional valor, ultimately earning the Victoria Cross for his actions.