I'm familiar with the Taiwan Relations Act, which means I know that it provides absolutely no guarantee of military intervention. What exactly is the relevance

I'm familiar with the Taiwan Relations Act, which means I know that it provides absolutely no guarantee of military intervention. What exactly is the relevance of the Taiwan Relations Act to the question of whether the US has guaranteed military intervention if China invades Taiwan? You are citing an irrelevant current law, and a treaty that expired 40 years ago, which doesn't inspire much confidence in your subject matter expertise. All Biden's statements prove is that he struggles to function without a teleprompter. The White House has repeatedly had to walk back his unscripted statements on Taiwan: https://www.foxnews.com/politics/biden-walks-back-taiwan-comments-china-military-three-times https://www.foxnews.com/politics/biden-walks-back-taiwan-com... With respect to Ukraine, Ukraine hosted US and NATO training missions, did joint naval drills with NATO, and in December Biden was still promising Ukraine a path to NATO membership: https://www.reuters.com/world/europe/ukrainian-president-zelenskiy-holding-talks-with-biden-adviser-says-2021-12-09/ https://www.reuters.com/world/europe/ukrainian-president-zel... As with Taiwan, with respect to Ukraine the US did not guarantee military intervention, but reserved the option to intervene and made statements to that effect. In recent months, they did clarify that they would not send US troops to intervene directly, but I expect we would see similar statements from the White House if China started preparing for an imminent invasion.