At a massive shipyard in North Vancouver, Canadian workers grind metal beams for a powerful new icebreaker crucial to cementing the country's presence in the increasingly contested Arctic.

Add Yahoo as a preferred source to see more of our stories on Google. A U.S. navy MH-60S Knighthawk helicopter sits with its rotors folded on the flight deck of the amphibious assault ship USS Iwo ...

The commander of the Royal Canadian Navy is floating the idea of an ice-capable amphibious landing ship to move troops and equipment around the country’s Arctic — and perhaps elsewhere. But ...