VANCOUVER, British Columbia — Canada’s outgoing Prime Minister Justin Trudeau said on Wednesday that “nothing is off the table” when it comes to responding to proposed tariffs by President-elect Donald Trump, but that no single region of the country should bear the full brunt of that response.

Trump has threatened to impose 25% tariffs on all Canadian imports.

“We have to respond to the challenge we’re facing,” Trudeau said following a five-hour meeting in Ottawa with Canada’s provincial premiers to discuss Trump’s threats. “We also have to make sure the burden is shared across the country.

“We can’t punish just one region, because tariffs have more impact on that region,” Trudeau said.

Ontario’s Premier Doug Ford said the provinces need to be united in their response to Trump’s threats.

“The retaliatory tariffs need to be hard,” said Ford, who spoke to the media prior to the meeting. He donned a hat that said that “Canada Is Not For Sale.”

“We have to send a message,” he said.

Also on Wednesday, Canada’s Energy Minister Jonathan Wilkinson warned U.S. lawmakers in Washington that Trump’s tariff threats would inflict economic pain on Americans, with higher prices and job losses.

Trump, who will be inaugurated on Monday, has said he will use economic coercion to pressure Canada to become the nation’s 51st state. He also continues to erroneously cast the U.S. trade deficit with Canada — a natural resource-rich nation that provides the U.S. with commodities like oil — as a subsidy.