As a matter of fact both Australians and Canadians have contributed significantly to US led coalitions in the GWOT as well. And according to guys I know their special forces guys are very serious mother fuckers. I'm sure as with probably every single war or military action since WWII it is politicking that got those soldiers there, but that doesn't detract from their skill and bravery which should absolutely be acknowledged and applauded.
After Pearl Harbor, they could have just put the Japanese fleet to the bottom of the Pacific and told them to stay on their side of the Pond ..
OR...
Not ignored the early warning and met them on the water and in the skies before they ever got too Hawaii.... But they let it happen to drag us into it...
Meeting them NW of Hawaii on December 5 would have been a challenge. The Japanese definitely had the US outgunned at that point....the drastic and fervent effort to re-arm and become the best navy on earth came AFTER Pearl Harbor.