Discuss how the US-led 'war on terror' after 9/11 altered the global balance of power. Examine its implications for the emerging multipolar order.

The 9/11 attacks found the United States at the pinnacle of its post-1991 unipolar dominance. The two-decade "war on terror" it launched, however, converted that primacy into strategic overstretch — hastening, rather than halting, the drift towards a contested multipolarity.

How the war on terror altered the balance of power

• From counter-terrorism to regime change: the campaign began against al-Qaeda's host, Taliban-ruled Afghanistan (2001), but widened into regime-change wars in Iraq (2003) and West Asia–North Africa, driven by a neoconservative agenda rather than a narrow security goal.
• Legitimacy deficit: the UN responded collectively through Resolution 1373 (2001) and the Counter-Terrorism Committee [1], yet the wars themselves were fought by ad-hoc coalitions largely outside an explicit UN mandate — eroding American normative authority.
• Strategic overstretch: two decades of West Asian entanglement, ending in the 2021 withdrawal and the Taliban's return, drained resources and credibility precisely when competitors consolidated.
• Rise of rivals: China moved from a close US economic partner in the 1990s to a systemic competitor, while Russia's estrangement deepened over NATO's enlargement, begun in 1999 before 9/11 [2].

Implications for the emerging multipolar order

• Transition, not settled structure: the UN Secretary-General notes the "post-Cold War period is over" and the world is "moving towards a multipolar world" [3] — but power is diffusing faster than governance adapts.
• Governance gap: hence the call to reform the Security Council, General Assembly and Peacebuilding Commission [3]; multipolarity without inclusive multilateral mechanisms multiplies systemic risk.
• Dispersed security threats: UN Secretary-General's periodic reports track ISIL's affiliates spreading across regions [4], showing no single power can police terrorism alone.
• Space for middle powers: India's multi-alignment, strategic autonomy and demand for Council expansion illustrate this widened diplomatic room [5].

The war on terror thus exhausted the unipolar moment without producing a stable successor order. A rules-based, reformed multilateralism — with expanded Council representation and cooperative counter-terrorism — offers the surest route from today's unsettled polarity to a genuinely inclusive multipolar equilibrium.