China Warns U.S. Against House Speaker Pelosi Visiting Taiwan

China warned on Thursday it would take strong measures if U.S. House of Representatives Speaker Nancy Pelosi visited Taiwan and said such a visit would severely impact Chinese-U.S. relations.

The possible visit has not been confirmed by Pelosi’s office or Taiwan’s government, but some Japanese and Taiwanese media reported it would take place after she visits Japan this weekend.

Chinese Foreign Ministry spokesperson Zhao Lijian told reporters that Beijing firmly opposed all forms of official interactions between the United States and Taiwan, and Washington should cancel the trip.

China considers democratically ruled Taiwan its own territory and the subject is a constant source of friction between Beijing and Washington, especially given strong U.S. military and political support for the island.

In Taipei, Taiwan Foreign Ministry spokesperson Joanne Ou would only say that inviting U.S. officials and dignitaries had always been “an important part” of the ministry’s work, and that it would announce any official visits at an appropriate time.

Sunday marks the 43rd anniversary of the United States signing into law the Taiwan Relations Act, which guides ties in the absence of formal diplomatic relations and enshrines a U.S. commitment to provide Taiwan with the means to defend itself.

The last time a House speaker visited Taiwan was in 1997, when Newt Gingrich met then-President Lee Teng-hui.