In 2016, Tsai Ing-wen of the DPP became the president of Taiwan. In 2020, she called on the international community to defend the self-ruled island's democracy in the face of renewed threats from China and called on the latter to democratize and renounce the use of military force against Taiwan. Chinese leader Xi Jinping had earlier expressed that Taiwan was part of China, who reserves the right to use force but will strive to achieve peaceful "reunification". Xi also offered to discuss unification with parties or individuals under the precondition of "one China", but both Tsai and the KMT rejected Xi's proposal.