Taiwanese President Tsai Ing-wen arrives at the boarding gate of the international airport in Taoyuan, on March 29.SAM YEH/AFP/Getty Images External pressure will not stop Taiwan engaging with the world, President Tsai Ing-wen said on Wednesday as she left for the United States, hitting a defiant note after China threatened retaliation if she met U.S. House Speaker Kevin McCarthy. China, which claims democratically-ruled Taiwan as its own territory, has repeatedly warned U.S. officials not to meet Tsai, viewing it as support for the island’s desire to be seen as a separate country. China staged war games around Taiwan last August...