The Canadians still have some real men in the Prairie Provinces and Alberta, but when it comes to cleaning out a nest of vipers like Islamofacist Terrorists, it's the cowboy American who is first to answer the call.
Canada won their independence on the beaches of Normandy. They sure did fight for it.
The Australians won theirs during the Boer War, due to mistreatment of their soldiers by the British.
The British Navy continued to impress US sailors from merchant ships until after the Treaty of Ghent, we had similar problems even after our independence. That treaty turned most of the problems that led to the war over to separate commissions. It was the Battle of New Orleans that sealed US independence. British soldiers, veterans of the wars against Napoleon Buonaparte, were decisively defeated by free Americans.
If Andrew Jackson had not led his men to that victory, the commissions established at Ghent would have been tools of negotiations to remove land from the US, and to organize the transfer of the US Merchant Marine to the British.
The battle of New Orleans showed that British arrogance could not stand against free men. The commissions recognized the reality of US power on the high seas, and in the American west.