The September 11 attacks in 2001 caused a catastrophic strategic distraction that diverted United States foreign policy from emerging great power rivals. By launching the Global War on Terrorism, Washington committed massive military resources to long campaigns in Afghanistan and Iraq, ultimately failing to eliminate terrorism while severely depleting its national treasure.
This prolonged focus on Middle Eastern regime change happened during a critical decade when Beijing rapidly expanded its naval capabilities and Moscow consolidated military power under Vladimir Putin. Great power conflict returned. The 2003 invasion of Iraq destabilised the region and expanded the geopolitical footprint of clerical Iran. Today, the United States remains trapped in a generational military struggle against Tehran. This shows how persistent strategic obsessions jeopardise the global system's survival and leave the nation ill-equipped to handle peer-state competition in Europe and Asia.