Anti-communism is political and ideological opposition to communist beliefs, groups, and individuals. Organized anti-communism developed after the 1917 October Revolution in the Russian Empire, and it reached global dimensions during the Cold War, when the United States and the Soviet Union engaged in an intense rivalry. Anti-communism has been an element of many movements and different political positions across the political spectrum, including anarchism, centrism, conservatism, fascism, liberalism, nationalism, social democracy, socialism, leftism, and libertarianism, as well as broad movements resisting communist governance. Anti-communism has also been expressed by several religious groups, and in art and literature.

The Kuomintang (KMT), also referred to as the Guomindang (GMD), the Nationalist Party of China (NPC) or the Chinese Nationalist Party (CNP), is a major political party in the Republic of China, initially based on the Chinese mainland and then in Taiwan since 1949. The KMT is a centre-right to right-wing party and the largest in the Pan-Blue Coalition. Its primary rival is the Democratic Progressive Party (DPP) and its allies in the Pan-Green Coalition. As of 2024, the KMT is the largest single party in the Legislative Yuan. The current chairman is Eric Chu.