Canadian officials announce over $20 billion in retaliatory tariffs on US goods

CBC News: The National | Canada-U.S. trade war begins

FULL: Watch Justin Trudeau's full announcement | Canada's response to U.S. tariffs

Types of Tariff | International Economics | Ecoholics

What is Tariff? | Meaning, Types, Purpose, Impact #tariffs

Tariffs Explained: Who Really Pays the Price?

Trump warns he could put “very severe tariffs” on Canadian fertilizer

Trump eyes Canadian potash as next tariff target in trade war

How soon you could feel the pain of the Trump tariffs

How tariffs could hurt Canada's oil | The Fifth Estate

Trade tariff turmoil pushes Canada to rethink US ties | DW News