Prime Minister Mark Carney gave a powerful speech to Canadians on Saturday morning, hours after ordering negotiators to suspend U.S. trade talks despite President Trump’s punishing tariffs.

The morning after he pulled negotiators from trade talks in Washington and set off a new round of American tariffs, Prime Minister Mark Carney called the U.S. proposal “a bad deal” and said Canada was “at war” with the United States.

“We’ve recognized from the start that America has changed,” he said in an address to Canadians on Saturday. “We recognize that sometimes, its signature is written in pencil.”

“We cannot accept what they offered and we will not give what they asked,” he added. “We were not prepared to compromise Canada’s sovereignty or undermine our key industries.”

In a muscular, 22-minute speech that let Canadians — and Americans — know exactly where he stands, Mr. Carney said that Canada was under attack by President Trump’s punishing tariffs.

“You’re at war when you’re attacked, and we got attacked,” Mr. Carney said.

But unlike his electrifying speech at Davos that spoke of a rupture in the world order, Mr. Carney explicitly named the United States as an aggressor and a threat to Canada and the global economy.

The latest U.S. tariffs, he said, “are designed to hurt and divide us. They are a miscalculation because Canadians will always take care of each other. We know we’re stronger together.”