For the first time in 22 years, two German warships will sail through the Taiwan Strait, a move likely to provoke Beijing. Germany joins other Western nations in asserting freedom of navigation in the region amid China’s territorial claims over Taiwan
Who is de facto claiming land? Taiwan has always been a part of China. KMT fled there after losing the civil war and claimed their occupation was rightful rule.
January 1, 1979.
https://history.state.gov/historicaldocuments/frus1977-80v01/d104
May 28, 2022
https://www.state.gov/u-s-relations-with-taiwan/