as its primary purpose is to ensure the US's Taiwan policy will not be changed unilaterally by the president and ensure any decision to defend Taiwan will be made with the consent of Congress. The act states that "the United States will make available to Taiwan such defense articles and defense services in such quantity as may be necessary to enable Taiwan to maintain a sufficient self-defense capabilities". However, the decision about the nature and quantity of defense services that America will provide to Taiwan is to be determined by the President and Congress. America's policy has been called "strategic ambiguity", and it is designed to dissuade Taiwan from a unilateral declaration of independence, and to dissuade the PRC from unilaterally unifying Taiwan with the PRC.