China is building a military and administrative outpost on Woody Island in the South China Sea, and according to Reuters will soon base a 5,000 ton coast guard vessel there to patrol disputed ocean territory. Woody Island, called Yongxing in China, is the seat of the Chinese prefecture of Sansha. Several nearby island groups come under Sansha’s administration, including the Spratly Islands, the Paracel Islands, and the Macclesfield Bank, all of which are also claimed by Taiwan, the Philippines, Vietnam, or some combination of all the above.