Canadian officials are preparing retaliatory measures if the new U.S. administration imposes tariffs on Canadian imports.

Trudeau has appeared on multiple U.S. news networks to warn Canada’s neighbors that their pocketbooks are at risk of becoming collateral damage in Trump’s trade war. “Anything an American president does to hurt the Canadian economy will also hurt American consumers and American workers and American growth,” he told CNN’s Jake Tapper last week.

Canadian PM Justin Trudeau said that if a “worst-case scenario” trade war ensues between the US and Canada, Ottawa won’t hesitate to take strong retaliatory measures.