ROSLAN RAHMAN/AFP/Getty Images China has started building a ‘test field’ for unmanned shipping The 225 square nautical miles site is in the South China sea, adjacent to Macau The project will be China's main base for unmanned ship technology and could become the largest project of its kind. China completed its first test of unmanned surface vessels last week. China has begun building a test field for unmanned ships, according to the government-authorized site China Internet Information Center. The Wanshan Marine Test Field, which began construction on Saturday, is being built in the South China Sea off Zhuhai, which is adjacent to Macau, and not far from one of the world’s busiest shipping ports, Hong Kong.See the rest of the story at Business InsiderNOW WATCH: No one wants to host the Olympics anymore — will they go away?See Also:Why a US military parade would look nothing like North Korea's, Russia's, or China'sChina wants to make the tech behind its supercomputers, drones, and rocket simulators harder to stealTrump is bringing back the Cold War with nukes, an arms race, and a military paradeSEE ALSO: Chinese police are using facial-recognition glasses to scan crowds for wanted criminals