When the familiar ground of a long-standing alliance begins to tremble, nations look toward new horizons. Canada's Mark Carney travels to Europe this week not merely to deliver a speech, but to quietly redraw the map of his country's economic and diplomatic loyalties — a journey made necessary by the mounting friction between Ottawa and a Washington grown unpredictable. It is the oldest of geopolitical instincts: when one door strains on its hinges, a wise hand reaches for another.