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South China Sea Disputes

International Relations

  • PYQs7
  • Articles1
I

Background

A major flashpoint in international relations, impacting regional stability, international law (UNCLOS), freedom of navigation, and the balance of power in the Indo-Pacific, with direct implications for global trade and energy security.

The South China Sea is a strategically vital waterway rich in natural resources, subject to overlapping territorial and maritime claims by several countries, including China, Vietnam, the Philippines, Malaysia, Brunei, and Taiwan. These disputes involve sovereignty over islands, reefs, and shoals, as well as maritime jurisdiction over surrounding waters and their resources.

II

Facts & tables

Claimants
China, Vietnam, Philippines, Malaysia, Brunei, and Taiwan.
Strategic Importance
Major global shipping lane, rich fishing grounds, and potential oil and gas reserves.
China's Claims
Based on historical maps (Nine-Dash Line), asserting sovereignty over most of the sea, including features far from its mainland.
International Law
UNCLOS is the primary legal framework, but China's claims often conflict with it (e.g., 2016 PCA ruling against China).
Static syllabus anchors
Type Reference
Conceptual area International Law
Conceptual area Maritime Security
Institutions & roles
Body Role
Permanent Court of Arbitration (PCA) Issued ruling on scs disputes
III

Prelims angle

Prelims angle: Multi-statement analysis

Prelims angle: Factual recall

  • Multiple claimants (China, Vietnam, Phil, Mal, Bru, Tai).
  • Strategic waterway, rich resources.
  • China's 'Nine-Dash Line' claims.
  • Conflicts with UNCLOS (2016 PCA ruling).
  • Impacts freedom of navigation & regional stability.
High-confidence PYQ links
Year Framing tags
2025 Factual recall, Conceptual understanding
2024 Multi-statement analysis, Factual recall
2022 Conceptual understanding, Statement-based questions
2022 Statement-based questions, Factual recall
2018 Factual recall, Multi-statement analysis
2015 Factual recall, Multi-statement analysis
2015 Factual recall, Multi-statement analysis

Timeline

  1. International Law

    Conceptual area

  2. Maritime Security

    Conceptual area

  3. Prelims 2015

    Factual recall, Multi-statement analysis

  4. Prelims 2015

    Factual recall, Multi-statement analysis

  5. Prelims 2018

    Factual recall, Multi-statement analysis

  6. Prelims 2022

    Conceptual understanding, Statement-based questions

  7. Prelims 2022

    Statement-based questions, Factual recall

  8. Prelims 2024

    Multi-statement analysis, Factual recall

  9. Prelims 2025

    Factual recall, Conceptual understanding

  10. Iran's demands over the Strait of Hormuz would set a dangerous precedent, Rubio tells Asian leaders

    The South China Sea is a critical maritime region with overlapping territorial claims by multiple nations, notably China's expansive 'Nine-Dash Line' claims, leading to disputes over islands and resources, challenging international law and freedom of navigation.

See also

Past papers

In the news

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