Has Australia's involvement in war always been motivated by a sense of loyalty?

Question

Please elaborate....

Answer 1

Not particularly, I'd say we are motivated by a sense of
1 duty to our NATO partnership
2 We don't want that war coming here, and
3 We have a duty to the world to try to help them and get rid of these mongrels.

Answer 2

I think Australian involvement in WW2 was motivated by a desire not to be invaded by Japan.

Answer 3

They want cheap oil too.