Prelims Mapping: South China Sea, Taiwan Strait & Strait of Malacca – Strategic Geography Explained

1️⃣ South China Sea

Location:

Part of western Pacific Ocean.

Bounded by:

• China (North)

• Vietnam (West)

• Philippines (East)

• Malaysia & Brunei (South)

Contains:

• Spratly Islands

• Paracel Islands

Highly disputed region.

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Why Important?

• Major global trade route

• Rich in fisheries

• Suspected oil & gas reserves

• Strategic military presence

China claims most of it via:
“Nine-Dash Line”

UPSC may test which countries border South China Sea.

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2️⃣ Taiwan Strait

Location:

Between:

• Mainland China

• Taiwan Island

Connects:

• East China Sea

• South China Sea

Strategically sensitive.

If blocked:
Global semiconductor supply affected.

Prelims trap:
Taiwan Strait is not same as South China Sea.

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3️⃣ Strait of Malacca

Location:

Between:

• Malaysia

• Indonesia (Sumatra)

Connects:

• Andaman Sea (Indian Ocean)

• South China Sea (Pacific side)

One of busiest shipping lanes in world.

India’s Andaman & Nicobar Islands lie near this strait.

UPSC loves this linkage.

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4️⃣ Why Strait of Malacca Matters to India?

• Major oil route for East Asia

• India’s strategic presence via Andaman & Nicobar Command

• Important in Indo-Pacific strategy

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5️⃣ Terminology Clarification

Strait:
Narrow natural waterway connecting two larger water bodies.

Sea:
Partially enclosed water body smaller than ocean.

Canal:
Artificial water passage (e.g., Suez).

UPSC may test classification.

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6️⃣ Prelims Trap Questions

Possible MCQ patterns:

• Which strait connects Indian Ocean to Pacific?

• Taiwan Strait connects which seas?

• Spratly Islands are located in which sea?

• Andaman & Nicobar Islands lie near which strategic strait?

Map-based + statement-based question highly probable.