A unilateral America in a post-unipolar world

1. At a Glance

• Traces how the 9/11 attacks (2001) and the subsequent US-led "global war on terrorism" reshaped America's global standing — from unchallenged unipolar power to a strained hegemon facing assertive rivals [1].
• Central UPSC theme: transition of the international system from unipolarity → multipolarity/"purgatory of polarity", a recurring theme in GS-II International Relations [2].
• Relevant for understanding great-power competition (US–China–Russia), West Asia's continuing instability, and India's foreign-policy positioning amid a fluid global order.

2. Why in the News

• 25th anniversary (September 2026 coverage, published 11 September 2026) of the 9/11 attacks prompted retrospective analysis in The Hindu on how the "war on terror" altered America's strategic position [1].
• Article situates the anniversary against the backdrop of US forces still engaged in West Asia, more assertive rivals (Russia, China), and terrorism now "more dispersed" across West Asia, South Asia and Africa [1].

3. Background & Evolution

• 1991: Soviet Union disintegrates — end of Cold War bipolarity; US emerges as sole superpower [1].
• 1990s: US undertakes military interventions in eastern Europe/Balkans; NATO completes first post-Cold War round of eastward expansion; China remains a close US economic partner at this stage [1].
• 11 September 2001: Al-Qaeda attacks on US soil; US then at "pinnacle of its power" [1].
• 2001 onward: President George W. Bush launches the "global war on terrorism," first targeting Taliban-run Afghanistan (host of al-Qaeda) [1].
• Post-2001: War expands beyond counter-terrorism into a series of regime-change wars (Afghanistan, Iraq, wider West Asia/North Africa) driven by neoconservative goals of reshaping the region per US interests [1].
• 2001–2021: "Main phase" of the war on terror runs roughly two decades, until US withdrawal dynamics culminate around August 2021 [1].
• 2023 onward: UN Secretary-General António Guterres publicly frames global politics as shifting toward a "multipolar world," stating the post-Cold War period is over [2].

4. Core Static Facts

Item	Detail
Triggering event	9/11 terrorist attacks, 11 September 2001 [1]
First military target	Taliban-run Afghanistan (hosted al-Qaeda) [1]
US President who launched war on terror	George W. Bush [1]
Ideological driver	Neoconservative regime-change agenda for Afghanistan, West Asia, North Africa [1]
Pre-9/11 global structure	Unipolar (post-Soviet collapse, 1991) [1]
Current global structure (UN framing)	Transitioning toward multipolarity; UNSG calls current phase a "purgatory of polarity" [2]
Key UN figure articulating shift	Secretary-General António Guterres [2]
Geographic spread of terrorism today	West Asia, South Asia, Africa [1]

5. Multi-Dimensional Analysis

Geopolitical / Strategic

• US remains militarily engaged in West Asia 25 years on, even as rivals (Russia, China) act more assertively in other theatres — indicating relative decline of unchallenged US primacy [1].
• NATO's post-Cold War expansion into Russia's neighbourhood is cited as a structural precursor to later Russia–West tensions [1].
• UN Secretary-General notes multipolarity without reformed multilateral governance mechanisms raises systemic risk — relevant to UNSC reform debates [2].

Historical

• Direct continuity from Cold War bipolarity (pre-1991) → unipolarity (1991–2001) → contested unipolarity/war-on-terror era (2001–2021) → emerging multipolarity (2020s) [1] [2].
• China's trajectory shifted from "close economic partner" of the US in the 1990s to a strategic rival today [1].

Ethical / Governance

• Regime-change wars raise questions about legitimacy of unilateral intervention versus UN-sanctioned multilateral action [1].
• Guterres flags that multipolarity lacking "inclusive mechanisms of multilateral governance" multiplies global risk — an ethics-of-global-order concern [2].

Administrative / Strategic (Security)

• Dispersal of terrorism from a concentrated al-Qaeda threat to fragmented networks across multiple regions complicates a single-power counter-terrorism response [1].

6. Recent Developments (last 12-18 months)

• 11 September 2026: The Hindu publishes 25-years-since-9/11 retrospective, "A unilateral America in a post-unipolar world," analysing US strategic drift [1].
• UN Secretary-General continues to reiterate (through 2023–2024 statements) that the world has moved beyond unipolarity into a still-forming multipolar order, urging strengthened multilateral governance [2].

7. Prelims Hooks

• 9/11 attacks occurred on 11 September 2001; killed the perpetrators' host regime's patron target — Taliban-run Afghanistan was the first war-on-terror target [1].
• The "global war on terrorism" was launched by US President George W. Bush [1].
• The USSR disintegrated in 1991, a decade before 9/11, marking the onset of US unipolarity [1].
• NATO's first post-Cold War expansion round occurred into Russia's eastern European neighbourhood before 9/11 [1].
• The war on terror evolved from counter-al-Qaeda operations into broader regime-change wars in West Asia and North Africa [1].
• UN Secretary-General António Guterres has publicly stated the "post-Cold War period is over" and the world is moving toward multipolarity [2].
• Terrorism today is described as more "dispersed" — spread across West Asia, South Asia, and Africa, unlike the centralised al-Qaeda threat of 2001 [1].
• China was a close economic partner of the US in the pre-9/11 period, contrasting with its current rival status [1].

8. Mains Relevance

• GS-II: International Relations — "Effect of policies and politics of developed and developing countries on India's interests," global groupings and agreements involving India.
• GS-I (limited): Post-Cold War world history/contemporary world affairs.
• Sample question stems: 1. 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. (GS-II, 15 marks) 2. 'The unipolar moment has given way to a contested and unstable multipolarity.' Critically analyse this statement with reference to US strategic behaviour since 2001. (GS-II, 15 marks) 3. Examine how the dispersal of terrorism across West Asia, South Asia and Africa complicates unilateral counter-terrorism strategies. (GS-III, 10 marks)

9. Related Topics to Study Next

• UN Security Council reform — directly tied to Guterres's call for inclusive multilateral governance in a multipolar era.
• NATO expansion and Russia–Ukraine conflict — traces back to the 1990s NATO expansion referenced in the article.
• India's strategic autonomy / multi-alignment policy — India's response to a multipolar, less US-centric world.
• Quad and Indo-Pacific strategy — how the US recalibrates from West Asia toward Indo-Pacific amid China's rise.
• Afghanistan and the Taliban's return (2021) — direct endpoint of the war-on-terror narrative.
• Global Terrorism Index / dispersal of non-state terror networks — links to the "dispersed terrorism" theme.
• China's Belt and Road Initiative and US-China rivalry — economic dimension of the unipolar-to-multipolar shift.

10. Common Errors / Trap Areas

• Do not conflate the war on terror's start (2001) with the Iraq War's start (2003) — they are distinct phases; Afghanistan was the first target, Iraq came later as part of the broader regime-change agenda [1].
• Avoid assuming "multipolarity" is already established fact — UN framing treats it as an ongoing, incomplete transition ("purgatory of polarity"), not a settled state [2].
• Don't attribute NATO's first post-Cold War expansion to a post-9/11 event — it predates 9/11, occurring in the 1990s [1].
• Do not confuse "war on terror" (a US-led campaign) with UN-mandated peacekeeping/counter-terrorism frameworks — the former was substantially unilateral [1].