Canada is seeing a spike in strikes — and as tariffs and the affordability crisis continue to hit workers hard, unions warn of more action on the horizon.

Some labour leaders say that includes a potential battle with a federal government that has repeatedly sent them back to work.

"We're preparing for the fight that's ahead," said Alisha Kang, president of the Union of National Employees. "The movement is done with lip service."

After the Liberal government intervened to end several high-profile strikes at ports, rail yards and Canada Post, that tension hit a new level last month when Air Canada's flight attendants defied Ottawa's back-to-work order — with union leaders risking fines and jail time.

A deal was reached the next day. WATCH | How is the labour landscape shifting?

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