Satellite images show China blowing up mock a Japan warplane. There is growing concern that a potential Chinese annexation of Taiwan would seriously jeopardize Japan's security and spark a larger confrontation.
The People's Liberation Army (PLA) is aware that an invasion of Taiwan would probably lead to confrontation with Japan because Yonaguni, Japan's westernmost inhabited island, is barely 110 kilometers (68 miles) away.
Japanese authorities have established a connection between...