The arrival of United States President Donald Trump in Kuala Lumpur, Malaysia, may appear to be a routine diplomatic gesture, but it carries far greater symbolic weight. His visit marks a turning point in Washington’s struggle to remain relevant in a world where its power no longer defines the terms of engagement. For decades, Asia listened when America spoke. Today, it still listens, but it no longer obeys. The Association of Southeast Asian Nations (Asean) was born in an era when the Global...