Kakitsu War is referred to as a series of disturbances occurred in 1441, from when Mitsusuke AKAMATSU, a shugo (provincial constable) of the Harima Province, the Bizen Province, and the Mimasaka Province, assassinated Yoshinori ASHIKAGA, the 6th seii taishogun (literally, "great general who subdues the barbarians") to when he was defeated and killed by the punitive force of bakufu (Japanese feudal government headed by a shogun) in his own territory, Harima.
嘉吉の乱（かきつのらん）は、室町時代の嘉吉元年（1441年）に播磨国、備前国、美作国守護の赤松満祐が、六代征夷大将軍足利義教を暗殺し、領国播磨で幕府方討伐軍に敗れて討たれるまでの一連の騒乱である。