Taipei conducted extensive military drills on July 16-17, 2025, to prepare for a potential Chinese attack. The exercises included air raid sirens prompting thousands to seek shelter underground, the shutdown of a key bridge to prevent Chinese forces from entering the city, and urban resilience drills in northern Taiwan. Taiwanese authorities also reported repelling two Chinese Coast Guard vessels that entered their territorial waters near Dongsha Island in the South China Sea. Meanwhile, Chinese state media released footage showing a Philippine Coast Guard vessel maneuvering against Chinese vessels near Huangyan Dao, highlighting ongoing maritime tensions in the region. These drills and maritime incidents underscore the heightened security concerns amid rising cross-strait and South China Sea tensions.