The head of Canadian jet manufacturer Bombardier Inc. raised concerns about Canada’s decision to review a contract for dozens of F-35 fighter jets with Lockheed Martin Corp., the country’s latest response to the trade war with the US.

Chief Executive Eric Martel voiced concerns on Monday about the Canadian government's review of its C$19 billion F-35 jet contract with U.S. defense contractor Lockheed Martin (NYSE:LMT), warning of potential U.

Canada, locked in a trade war with the United States, is reviewing a C$19-billion ($13.29 billion) contract for 88 American-made F-35 fighter jets from Lockheed Martin but switching planes could be costly and complex,