The Nansha Islands, also known as the Spratly Islands, are a group of islands and reefs located in the South China Sea. They are claimed by multiple countries, including China, Vietnam, and the Philippines. The islands are known for their rich marine biodiversity and strategic shipping routes. The Nansha Islands consist of over 100 small islands, atolls, and reefs, many of which are uninhabited. The area is significant for its potential natural resources, including oil and gas reserves, as well as fishing grounds. The territorial disputes surrounding the islands have led to ongoing geopolitical tensions in the region.