A squad of 120 North Korean Army commandos land in boats along a 25-mile long section of the eastern coast of South Korea in a failed attempt to overthrow the dictatorship of Park Chung Hee and bring about the reunification of Korea.

The Korean People's Army encompasses the combined military forces of North Korea and the armed wing of the Workers' Party of Korea (WPK). The KPA consists of five branches: the Ground Force, the Naval Force, the Air Force, the Strategic Force, and the Special Operations Forces. It is commanded by the WPK Central Military Commission, which is chaired by the WPK general secretary, and the president of the State Affairs; both posts are currently headed by Kim Jong Un.

The Ulchin-Samcheok landings was an unsuccessful attempt by North Korea to establish guerrilla camps in the Taebaek Mountains on October 30, 1968, in order to topple Park Chung-hee's regime and bring about the reunification of Korea.

Park Chung Hee was a South Korean politician and army officer who served as the third president of South Korea from 1962 after he seized power in the May 16 coup of 1961 until his assassination in 1979. His regime oversaw a period of intense economic growth and transformation, making him one of the most consequential leaders in Korean history, although his legacy as a military dictator continues to cause controversy.

Korean reunification is the hypothetical unification of North Korea and South Korea into a singular Korean sovereign state. The process towards reunification of the peninsula while still maintaining two opposing regimes was started by the June 15th North–South Joint Declaration in June 2000, was reaffirmed by the October 4th Declaration in October 2007 and the Panmunjom Declaration in April 2018. In the Panmunjom Declaration, the two countries agreed to work to officially end the Korean conflict in the future.