Two of the world's most economically intertwined neighbors now face each other across a widening trade divide, as the Trump administration has issued executive orders banning Canadian dairy, alcohol, and motorcycles from U.S. markets — prompting Ottawa to answer with retaliatory tariffs of its own. The dispute, rooted in long-standing commercial grievances, raises a question as old as statecraft itself: whether such pressure is a negotiating tool or the opening chapter of something more lasting. What is certain is that ordinary consumers on both sides of the border will feel the weight of deci