A submarine, built by Germany's ThyssenKrupp Marine Systems (TKMS), moves through the Kiel Fjord, heading toward the Baltic Sea, off the coast of Kiel, Germany, on Sept. 1. TKMS is one of two companies shortlisted by Ottawa to compete on a multibillion-dollar contract to build up to 12 new submarines.

Defence ministers from Germany and Norway urged Canadian officials in Ottawa to join their submarine partnership this week, just days before Prime Minister Mark Carney leaves on an Asian trip that will include a review of South Korea’s rival bid.

During a visit to Berlin in August, Mr. Carney announced that Canada had shortlisted two companies to compete on a multibillion-dollar contract to build up to 12 new submarines for the Royal Canadian Navy.

Just hours later, Mr. Carney took par

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