US supports Taiwan, how prepared is China to face it?

Tension arose in Taiwan after US House Speaker Nancy Pelosi arrived in Taiwan, raising tensions between the US and China over the island that China claims as its own. The whole world was hooked onto a flight tracking site as US plane SPAR19 departed for Taipei from Malaysia on Tuesday evening. Then the much-anticipated landing finally happened, Nancy Pelosi became the highest-ranking elected US official to visit Taiwan in over 25 years. On the day of her visit, at least 21 Chinese military aircraft entered Taiwan's air defense zone. How prepared is China to face US supported Taiwan? Watch this video.