Canada's new leader has announced a radar purchase from Australia and an expansion of military operations in the Arctic while visiting Canada’s far north in an effort to assert sovereignty over the increasingly contested region.

Canada and Australia are planning to jointly develop a new military radar system in the Arctic amid a global surge of interest in the region, according to Canadian Prime Minister Mark Carney, who warned that Canada’s “adversaries are increasingly emboldened.

IQALUIT, Nunavut — New Canadian Prime Minister Mark Carney arrived at the edge of the Arctic Circle on Tuesday in an effort to assert sovereignty over the increasingly contested region.