Taiwan Strait seemed to have become a potential area of powder keg in the world after Trump-Cai conversation.  Attached below is an in-depth analysis that I found in Sina blog.  You may say the author's viewpoint that China would definitely win the war over America has been a little bit hyped up, but all China needs is self-confidence and preparedness, as Chairman Mao's words that I quote in the subject.   

"王誠: 即將到來的對華戰爭會來嗎?" http://blog.sina.com.cn/s/blog_4ee8cf410102xjd9.html