> defend an ally The USA would not merely be defending an ally; it would be defending a part of its supply chain that somehow, somewhere along the line, became

> defend an ally The USA would not merely be defending an ally; it would be defending a part of its supply chain that somehow, somewhere along the line, became essential to pretty much every moving part of the country. Moving enough fab to the continental United States to make a meaningful difference could be done long-term as a matter of strategic policy, but you can't make a change like that fast enough to address the USA's _present day_ geopolitical concerns. For now, Taiwan is kinda important.