The Kyo Defense Force (Kyo. 쿄방위대; Abbr. KDF) was a left-wing, nationalist political party in the Kingdom of Dankuk. The party formed out of the initial "Kyo Defense Force," a student organization founded at Gongmangdo University following the 2/20 terrorist attacks on Gongmangdo. The party was headquartered in Gongmangdo, at the Saenuri Building. The KDF was initially banned as a result of the Great Kyo Revolution of 3608, but it later merged with the Kyo Revolutionary Society in 3625.