The US stance is that Taiwan is already part of China and has been for a while. https://www.state.gov/u-s-relations-with-taiwan/ https://www.state.gov/u-s-rela

The US stance is that Taiwan is already part of China and has been for a while. https://www.state.gov/u-s-relations-with-taiwan/ https://www.state.gov/u-s-relations-with-taiwan/ The United States’ approach to Taiwan has remained consistent across decades and administrations. The United States has a longstanding one China policy, which is guided by the Taiwan Relations Act, the three Joint Communiques, and the Six Assurances. We continue to have an abiding interest in peace and stability across the Taiwan Strait. We oppose any unilateral changes to the status quo from either side. We expect cross-Strait differences to be resolved by peaceful means, free from coercion, in a manner acceptable to the people on both sides of the Strait. Consistent with the Taiwan Relations Act, the United States makes available defense articles and services as necessary to enable Taiwan to maintain a sufficient self-defense capability – and maintains the capacity to resist any resort to force or other forms of coercion that would jeopardize the security, or the social or economic system, of the people on Taiwan. Keep in mind, that if we go to war with China, they'll probably have to reinstate the draft.