Japanese Deputy Prime Minister Taro Aso has said his country "would have to defend Taiwan" with the United States if the island is invaded by mainland China, triggering a backlash from Beijing on Tuesday.If Taiwan were to experience a big problem, "it would not be too much to say that it could relate to a survival-threatening situation" for Japan, Aso, who also serves as finance minister, said at a gathering of a ruling Liberal Democratic Party lawmaker in Tokyo on Monday. Chinese Foreign Ministry spokesman Zhao Lijian told reporters on Tuesday in Beijing, "Such remarks are extremely wrong…READ FULL ARTICLE