House Speaker Nancy Pelosi has arrived in Taiwan, despite stern warnings from Beijing, making her the highest-level US official to visit the island in 25 years. Pelosi’s US Air Force-operated Boeing C-40C landed at Taipei’s Songshan Airport late Tuesday, marking the start of the third – and most controversial – leg of her five-country Asia tour. Pelosi and her delegation of Democratic Party lawmakers were met by Taiwan Foreign Minister Joseph Wu and Sandra Oudkirk, the director of the American Institute in Taiwan, which serves as Washington’s de facto embassy. The trip has drawn outrage from B…