The Kuomintang, or KMT, is a Chinese nationalist political party founded in 1912 that played a significant role in the early 20th century, advocating for the modernization and unification of China. The KMT sought to establish a republic and was initially led by Sun Yat-sen, promoting ideas of nationalism, democracy, and people's livelihood. It became a major player during the formation of the First United Front with the Chinese Communist Party, and later established the Nationalist government during the Nanjing Decade.