<Li> 13 February--Satellite images shows that China is currently expanding the North Island and Tree Island, both part of the Paracel Islands . Water capture reservoirs and fuel bunkers are the newly constructed structures seen in Fiery Cross Reef . A newly visible helicopter base is under construction in Duncan Island suggesting that Beijing may develop a network of bases in the South China Sea to support anti-submarine helicopters . </Li> <Li> 22 February--Japanese Foreign Minister Fumio Kishida cancels his plans to visit China . </Li> <Li> 14 March--Beijing will set - up an International Maritime Judicial Center similar to the United Nations Convention on the Law of the Sea (UNCLOS) in order to help protect every countries sea rights . According to Chief justice Zhou Qiang, the Chinese judicial center will primarily focus on the case of countries with territorial issues with China . </Li> <Li> 19 March--Indonesian maritime official involved in a clash with a Chinese coast guard boat over a Chinese trawler accused for illegal fishing off the Natuna islands . Chinese fishermen were under Indonesia's custody, while the trawler was set free after being rammed by Chinese coast guard boat . </Li>

When did china start building islands in the south china sea