The world’s most powerful leaders gathered in New Delhi for the year’s premier diplomatic event—the G20 summit—but China’s Xi Jinping deemed it not worth his time. His absence sends a stark signal: China is done with the established world order.

Ditching the summit marks a dramatic turn in China’s foreign policy. For the past several years, Xi has apparently sought to make China an alternative to the West. Now Xi is positioning his country as a full-on opponent—ready to align its own bloc against the United States, its partners, and the international institutions they support.