Canada might not buy a full slate of 12 submarines through its new partnership with Germany and Norway because of factors like advancing technology in autonomous underwater machines, says the

Canada is expected Monday to choose between German and South Korean bids to build a multibillion-dollar fleet of 12 submarines

Prime Minister Mark Carney is expected to announce Canada's high-stakes decision to buy a fleet of submarines from South Korea's Hanwha or Germany's TKMS.