Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Why Drones Matter So Much for China to Control Disputed Sea? Ralph Jennings TAIPEI, TAIWAN - China is bolstering its lead in resource exploration and any conflicts in the South China Sea, a sea disputed by five other governments, by stepping up deployment of expendable, cost-effective drones, analysts believe. Last month the People's Liberation Army exhibited an "electronic-warfare variant" of drones that had done just reconnaissance missions before, part of an effort to control information during any military movement, American research organization Center for Strategic & International Studies said. In September, a drone network operated by the Chinese Ministry of Natural Resources was sent to survey the contested sea's waters and remote, uninhabited islets, the Ministry of Ecology and Environment said as reported by domestic media. In 2017 Chinese researchers christened a drone specifically for maritime transport and surveillance. Drones can easily spy because, if caught, operators can claim they're being used for resource exploration, experts say. Their cheaper than radars and other intelligence-gathering tools, causing little loss if seized, they add. "The drone is of course a very ideal sort of spy," said Alan Chong, associate professor at the S. Rajaratnam School of International Studies in Singapore "Drones are in a sense more expendable than aircraft. If they're shot down, China would raise a protest, but that's it." Stronger position in South China Sea China, hemmed in by other claimant states and monitored by Western powers, isn't expected to occupy more features in the 3.5-million-square-kilometer sea that's prized for fisheries and energy reserves. But drones along with other quasi-military technology will help it find undersea fossil fuels and know quickly if another country is expanding, especially near China's existing maritime assets, scholars say. .