For the last three months, the Canadian Armed Forces (CAF) have carried out a 4,500km snowmobile patrol across the Arctic to exercise Canada’s military and defence capabilities in the far north. Traveling from the Yukon-Alaska border to Churchill, Man., CAF soldiers and Canadian Rangers transported artillery to the nation’s northern-most point, Cambridge Bay, Nvt. — braving blizzards, frostbite and temperatures between minus 30 and 60 degrees Celsius along the way — in preparation for potential foreign threats in the future.