Canada's new leader will announced a multibillion dollar 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.

Prime Minister Mark Carney announced Tuesday a Can$6 billion (US$4.2 billion) deal with Australia to develop an Arctic radar system, warning that Canada must take more responsibility for its defence as US priorities shift.

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.

Mark Carney is a newcomer to elected politics, with decades of experience in finance. After his landslide victory, he pledged to continue tariffs on the U.S. "until the Americans show us respect."

OTTAWA — Prime Minister Mark Carney is hosting a meeting with Canada’s premiers on Friday. The prime minister’s office and the office of Ontario Premier Doug Ford confirmed details of the meeting. It comes as Carney is widely expected to call an election within just days or weeks.