“Imagine that in 2020, China learns that the United States will soon deliver an unusually large and comprehensive arms package to Taiwan. Determined to continue growing its military advantage – and therefore its leverage – vis-à-vis Taiwan, China declares a red line against the delivery, threatening severe consequences if the United States proceeds. That announcement ignites a standoff in the Taiwan Strait. Each side mobilizes its forces and prepares for the possibility of armed conflict.”

Source: How to Sell Arms to Taiwan | The Diplomat