What flag did Australia fight under in ww2?

Related questions

1. What 4 stars make up the Southern Cross?
2. Is Australia a British colony?
3. Why does Australia have the Union Jack?
4. Why is the Australian flag important?
5. What is the difference between New Zealand and Australia flag?
6. Does each state in Australia have its own flag?
7. What do the 5 stars represent in the Australian flag?
8. Why did England change its flag?
9. Was Australia's flag ever red?
10. How many times has the Australian flag been changed?

Tags

1. #either
2. #fought
3. #australians
4. #union
5. #british
6. #under
7. #ensign
8. #australian
9. #naval
10. #personnel
11. #world