As the US’ Indo-Pacific strategy evolves, the notion of strategic ambiguity, which has guided the US-Taiwan relationship since the mid-1950s, is withering.
After the Taiwan Strait crisis of 1954-1955, the US brought into force the Mutual Defense Treaty (MDT) with Taiwan. The treaty was never intended to be a war-fighting pact. It was designed to boost Taiwan’s morale and to tie the hands of former president Chiang Kai-shek (蔣介石), who was scheming to involve the US in his attempts to return to China.