A five-member U.S. Congressional delegation visited Taiwan on Sunday on the heels of U.S. House Speaker Nancy Pelosi's trip to the island in early August. China has voiced strong opposition against the U.S. lawmakers' provocations. China's Eastern Theater Command doubled down on live-fire drills around the waters and airspace of Taiwan island on Monday. What's behind the U.S. lawmakers' series of visits to Taiwan? How tough are China's countermeasures? Join us for "What's behind the agitating U.S. legislators' visits to Taiwan?" only on CGTN.