寶安縣
During World War II, the Japanese occupied Shenzhen and Nantou, forcing the Bao'an County government to relocate to the neighboring Dongguan County. In 1941, the Japanese army tried to cross into Hong Kong through the Lo Wu Bridge in Shenzhen, though this was detonated by the British, preventing the Japanese from entering Hong Kong. When Japan surrendered in May 1945, the Bao'an County government moved back to Nantou.