Marco Rubio considers it an "overused term" while Friedrich Merz thinks it "no longer exists". But while the US Secretary of State and German chancellor may not believe in the relevance of the rules-based international order, the concept — and its potential collapse — has been at the forefront of global geopolitics of late. The phrase caught the global attention in January after a rare speech, from Canadian Prime Minister Mark Carney, in which a world leader tackled the often unspoken concept head on. "We knew the story of the rules-based international order was partially false, that the strongest would...