As for China being a threat to Taiwan.

I highly doubt it there will be war with Taiwan.

China and Taiwan are very closely linked economically. Most of the Taiwanese factories are situation in Fujian province, China. Taiwan is one of the largest investors in the Chinese economy. Also the pro independence party have been booted out of office in the recent election(due to rampant corruption and poor economic performance) and the KMT(Kuomintang) party is back in the drivers seat which by the way(ironically) acceptable to the Chinese gov. There is even talks now(that the Ind. party is gone) of directs flights from Taiwan to China.