No, chiwei yu is an inherent territory of China, and there is no Japanese garrison. Chiwei yu is under the control of China, and China has carried out cruise enforcement in the Diaoyu Islands. Chiwei yu is about 1 10 km away from Diaoyu Island, with a length of 484 meters, a width of 194 meters and an area of 0.065 square kilometers, which is roughly equivalent to the size of 27 football fields. The highest altitude in chiwei yu is about 75 meters, and the main body of the island is in the shape of a steeple. China has published the standard names of chiwei yu and chiwei yu 1 peak, 1 sea column and 10 surrounding islands.