27-12-2023
South China Sea
For Prelims:About South China Sea (Boundaries,Climate,Major Ports),Importance of South China Sea,Nine-dash line
For the Mains:What is the South China Sea Dispute?, Reason behind the rise
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Why in the news?
China has warned that remnants of a rocket would hit an area in the South China Sea, following the sixth deployment of its most powerful launch vehicle recently.

About South China Sea:
- It is an arm of the western Pacific Ocean that borders the Southeast Asian mainland.
- Boundaries: It is bordered by China, Taiwan, the Philippines, Malaysia, Indonesia, Brunei, and Vietnam.
- It is connected by the Taiwan Strait with the East China Sea and by the Luzon Strait with the Philippine Sea (both marginal seas of the Pacific Ocean).
- The South China Sea and the East China Sea together form the China Sea.
- The two major archipelagos are known as the Paracel Islands, controlled by China, and the Spratly Islands.
- Climate: Weather in the sea is tropical and largely controlled by monsoons.
- It is the second most used sea lane in the world. It is a significant trade route for crude oil from the Persian Gulf and Africa through the Strait of Malacca to Singapore, Thailand, Hong Kong, Taiwan, South Korea, and Japan.
- Major Ports: Hong Kong, Singapore, and Kaohsiung in southern Taiwan.
Importance of South China Sea
- The South China Sea is a major shipping route.
- The United Nations Conference on Trade and Development estimates that over 21% of global trade, amounting to $3.37 trillion, transited through these waters in 2016.
- This sea holds tremendous strategic importance for its location as it is the connecting link between the Indian Ocean and the Pacific Ocean (Strait of Malacca).
- It is also home to rich fishing grounds that provide for the livelihoods of millions of people across the region.
- More than half of the world's fishing vessels operate in this area.
- The Paracels and the Spratlys may have reserves of natural resources around them.
- There has been little detailed exploration of the area, so estimates are largely extrapolated from the mineral wealth of neighbouring areas.
What is the South China Sea Dispute?
- It is situated just south of the Chinese mainland and is bordered by the countries of Brunei, China, Indonesia, Malaysia, Philippines, Taiwan, and Vietnam.
- The countries have bickered over territorial control in the sea for centuries, but in recent years tensions have soared to new heights.
Reason behind the rise
- The South China Sea is one of the most strategically critical maritime areas and China eyes its control to assert more power over the region.
- Due to its economic and geostrategic importance, the South China Sea becomes a venue of several complex territorial disputes that have been the cause of political as well as military conflict and tension within the region and throughout the Indo-Pacific.
Nine-dash line:
- China claims by far the largest portion of territory in an area demarcated by its so-called "nine-dash line".
- The line comprises nine dashes, which extend hundreds of miles south and east from its most southerly province of Hainan.
Source: Reuters