The well-orchestrated US House of Representative Speaker Nancy Pelosi's trip to Taiwan was more than a visit to a US client state. Taiwan, under Chiang Kai-Shek of the Kuomingtan (KMT) used to imagine it would one day 'liberate' the mainland from Mao Ze Dung's Communist Party of China.
The United States, with its own domestic tribulations, encouraged Taiwan to entertain such beliefs, made the United Nations go along, and plunged into a self-destructive war in Vietnam. African countries, as part of the Third World movement, helped destroy the myth that Taiwan was China.