What are the obvious effects of World War I and World War II on Australia? (Independence and national status)

During World War II, Japan attacked Australia, but failed twice. When Germany attacked Britain, Churchill wanted to emigrate to Australia, but many people immigrated to Australia because Australia was a paradise at that time, and these immigrants promoted the development of Australia. The obvious effect is that. Everyone else is ruined. Australia is accepting immigrants and making efforts to develop. . Britain was able to resist later because there were many minerals here, and most of the weapons were produced in Australia. . During World War I, Australia had a small population ... In World War II, the immigrant population exceeded the original population.