Xi Jinping’s invocation of the ‘Thucydides Trap’ revives the long shadow of the Peloponnesian War and asks whether America and China are repeating history’s oldest great-power mistakes. AI generated image During last week’s summit in Beijing with U.S. President Donald Trump, Xi Jinping once again summoned the ghosts of ancient Greece. The Chinese leader warned that Beijing and Washington must avoid falling into the ‘Thucydides Trap,’ the now-famous formulation popularised by