Nancy Pelosi, the Speaker of the U.S. House of Representatives, just arrived in Taiwan. Why is this a big deal? Shouldn’t anyone be able to visit any country that has opened their doors to them? It depends on the context and purpose.
The civil war for control of China was won by the Chinese Communists lead by Mao Zedong in 1949. The opposition, led by General Chiang Kai-shek, fled to Taiwan and reestablished the Republic of China (POC) there. The civil war was fought on and off between 1927 and 1949 when the victorious Mao established the Peoples Republic of China (PRC) and designated Taiwan as its 23rd province. Both the PRC and POC claimed to be the legitimate governments of all of China.
Following President Richard Nixon’s historic visit to China in 1972, “the United States moved to recognize the People’s Republic of China (PRC) and de-recognize the Republic of China (ROC) in 1979, [and] the United States stated that the government of the People’s Republic of China was ‘the sole legal Government of China.’ Sole, meaning the PRC was and is the only China, with no consideration of the ROC as a separate sovereign entity.
“The United States did not, however, give in to Chinese demands that it recognize Chinese sovereignty over Taiwan (which is the name preferred by the United States since it opted to de-recognize the ROC). Instead, Washington acknowledged the Chinese position that Taiwan was part of China. To this day, the U.S. ‘one China’ position stands: the United States recognizes the PRC as the sole legal government of China but only acknowledges the Chinese position that Taiwan is part of China.
“Congress passed the Taiwan Relations Act in 1979 to protect the significant U.S. security and commercial interest in Taiwan. The TRA provided a framework for continued relations in the absence of official diplomatic ties…. The TRA sets forth the American Institute in Taiwan as the corporate entity dealing with U.S. relations with the island; makes clear that the U.S. decision to establish diplomatic relations with the People’s Republic of China rests upon the expectation that the future of Taiwan will be determined by peaceful means;… mandates that the United States make available defensive arms to Taiwan; and requires that the United States maintain the capacity to resist any resort to force or other forms of coercion that would jeopardize the security, or the social or economic system, of the people on Taiwan.”
“What is US one China policy and why does it matter?”
All American Presidents have affirmed this one China commitment while maintaining its “strategic ambiguity”. “U.S. Secretary of State Rex Tillerson said [that] the Trump administration is committed to the long-standing ‘One China’ policy as it reviews U.S. policy toward China, but also intends to keep all of its commitments to Taiwan.” June 13, 2017. “USA China-Tillerson committed to one China policy”
More recently: “Joe Biden made a potentially dangerous statement on Monday. In Tokyo, he gave a flat ‘yes’ to a reporter’s question of whether he was willing to ‘get involved militarily to defend Taiwan’. ‘That’s the commitment we made,’ the president claimed. In fact, the United States scrapped its formal commitment to defend Taiwan in 1979…. This is the third time in less than a year that Biden has publicly declared that the United States would use force to keep Beijing from seizing the island. “Biden defend Taiwan-China invasion”
Pat Buchanan asks: “But if the U.S. went to war to defend Taiwan, what would it mean? We would be risking our own security and possible survival to prevent from being imposed on the island of Taiwan the same regime lately imposed on Hong Kong without any U.S. military resistance.” “Is Taiwan’s independence worth war?”
What is Pelosi’s objective in going to Taiwan? What does she hope to accomplish with her poke in the Chinese eye? Our interest should be to promote the integration of Taiwan with the rest of China “by peaceful means.” Our diplomacy should be deployed to that end. President Biden’s repeated slips and Nancy Pelosi’s Taiwan visit do not provide the tone nor context for such diplomacy. I believe that her visit to Taiwan is a dangerous mistake. While we would be hard pressed from thousands of miles away to win a war with China, China would suffer enormously as well and probably has better sense than to start such a war. But what is the purpose of such a challenge?
Warren's space 
Warren, thanks fir this summary and your own point of view. You have never lived in Asia, and therefore, i understand your naïveté. This is not about Taiwan 🇹🇼, rather this is about the US role in defending any of our partners in East Asia, including South Korea, Japan, Philipines , Taiwan and the US territories in the Pacific. I lived in Seoul for 4.5 years and is not easy to forget you are next to Russia 🇷🇺 or China 🇨🇳. The South Koreans made it to DC two weeks ago though we don’t know about this conversations. At a time that America has lost credibility as a reliable partner and has become second in the world 🌎, the US government must and should be close to our far east partners. I dismay to hear that Mrs Pelosi must be afraid of any retaliation. If the US does not have de conejos 🐇 (read: cojones) to defend democracy and our partners, we better become a Chinese or Russian state. I still have faith that the US is still the leading democracy in the west and is “the land of the brave, and the proud”.
We would contribute more to our and world’s securities by rediscovering and deploying diplomacy.