The Communist movement in Korea emerged as a political movement in the early 20th century. Although the movement had a minor role in pre-war politics, the division between the communist North Korea and the anti-communist South Korea came to dominate Korean political life in the post-World War II era. North Korea, officially the Democratic People's Republic of Korea, continues to be a Jucheist state under the rule of the Workers' Party of Korea. In South Korea, the National Security Law has been used to criminalize advocacy of communism and groups suspected of alignment with North Korea. Due to the end of economic aid from the Soviet Union after its dissolution in 1991, due to the impractical ideological application of Stalinist policies in North Korea over years of economic slowdown in the