Will US directly defend Taiwan if invaded by China?

AND THE LOGIC FOR CHINA TO UNIFY WITH TAIWAN “NOMINALLY”

This is The Economist’s cover story of Taiwan being the most dangerous place on earth. Certainly the most likely flashpoint of armed conflict between the superpowers. While it is worth a read, the critical question of whether US will directly defend Taiwan in the event of Chinese invasion is left unasked, and unanswered.