Blocking the narrow waterway between Russia and Alaska could help stabilize a vulnerable system of ocean currents, scientists found in a study.

Canadian soldiers transported M777 howitzers to the High Arctic to show their ability to fight in an increasingly contested part of the world. It did not go as planned.

Canada’s prime minister got a warm welcome from leaders still smarting about President Trump’s remarks two months ago about taking over Greenland.

Prime Minister Mark Carney said Canada would build three bases in the region. The government also plans to improve infrastructure and airports in the north.