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 to 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. CGTN host Tian Wei talked to Meng Xiangqing, deputy director of the Strategic Research Institution at the National Defense University of the People's Liberation Army in China. Meng said the live-fire drills are becoming a routine military exercise and that the PLA had built a comprehensive, multi-dimensional combat system in the region.