The Blue House raid, also known in South Korea as the January 21 Incident, was a raid launched by North Korean commandos in an attempt to assassinate President of South Korea Park Chung Hee in his residence at the Blue House in Seoul, on January 21, 1968. A 31-man team of the Korean People's Army (KPA) infiltrated the DMZ but was intercepted by police near the residence. In the ensuing pursuit, all but two commandos were killed; one was captured, and one fled back to North Korea. South Korean casualties totaled 26 killed and 66 wounded, including about 24 civilians; four Americans also were killed. President Park was unharmed.

North Korea, officially the Democratic People's Republic of Korea (DPRK), is a country in East Asia. It constitutes the northern half of the Korean Peninsula and borders China and Russia to the north at the Yalu (Amnok) and Tumen rivers, and South Korea to the south at the Korean Demilitarized Zone. The country's western border is formed by the Yellow Sea, while its eastern border is defined by the Sea of Japan. North Korea, like its southern counterpart, claims to be the legitimate government of the entire peninsula and adjacent islands. Pyongyang is the capital and largest city.