The Associated Press or New York Times (or other similarly reputable new source) reports that the People's Republic of China has implemented a blockade against Taiwan and the blockade has lasted at least 10 days or has been lifted by Taiwanese military forces or by military forces of Taiwanese allies.

A Chinese blockade has closed access to 1+ major Taiwanese ports including but not limited to: Kaohsiung, Keelung, Taichung, and Taipei. This closure has lasted at least 10 days or the blockade has been lifted by Taiwanese military forces or by military forces of Taiwanese allies.

No outlying islands (kinmen, etc.) count