By taking everything into consideration, in the midst of the US creating its containment policy in Asia, Prime Minister Yoshida shifted his stance with regard to the US administration (to then-US Secretary of State John Foster Dulles), as detailed in the Yoshida Letter, to negotiate a peace treaty with Taipei instead. Also as a result of ratification of the Treaty of San Francisco by the US Congress and Senate, he officially ended Japan's status as an imperial power, officially relinquishing of the island of Taiwan and Pescadores. These actions were drafted into Article 9 of the new liberal democratic Japanese Constitution which dismantled the country's military capabilities to declare war on another country with the reservation of self-defense limitations and later stipulated the Security Treaty Between the United States and Japan, which was also passed and enacted by the majority members of the new Japanese Diet with subsequent security treaties in the post-war era.