Canada's government has launched a fresh attack in the row over the US imposing import tariffs on airliners built by Bombardier, a move which threatened UK jobs.
Launching a tender to buy 88 new fighters, the Canadian government referenced tension with the US after Boeing-led a campaign for trade levies on imports of Bombardier's C-Series airliners, according to the Daily Telegraph.
In a statement, the Canadian government said when bids for the fighters are assessed, "any bidder that is responsible for harm to Canada's economic interests will be at a distinct disadvantage".
This is a clear reference to Boeing, who build the F-18 fighter which is the mainstay of Canada's airforce, and who had been hoping to land a follow-on sale before the row blew up.
A sale of C-Series jets to American carrier Delta looked in doubt after the US imposed 300 per cent levies on the jets. US courts said they were planning to introduce the tariffs because the airliners had received state subsidies, allowing them to be "dumped" at unrealistic prices.