(CNN) US House Speaker Nancy Pelosi landed in Taipei on Tuesday, marking a significant show of support for Taiwan despite China's threats of retaliation over the visit.
Pelosi's stop in Taipei is the first time that a US House speaker has visited Taiwan in 25 years.
Her trip comes at a low point in US-China relations and despite warnings from the Biden administration against a stop in Taiwan.
Taiwan's Ministry of National Defense said that 21 Chinese warplanes made incursions into its air defense identification zone (ADIZ) on Tuesday.
The House speaker is expected to visit Taiwan's presidential office and parliament on Wednesday morning (local time), a senior Taiwanese official told CNN.
"We support Speaker of the House of Representatives Nancy Pelosi's trip to Taiwan," the Republicans said.
"For decades, members of the United States Congress, including previous Speakers of the House, have travelled to Taiwan. »