Feudalism in medieval Japan (1185-1603) is the relationship between lords and vassals where land ownership and its use were exchanged for military service and loyalty. Although present earlier to some degree, the feudal system in Japan was really established from the beginning of the Kamakura Period in the late 12th century.
This is a companion discussion topic for the original content at https://www.worldhistory.org/article/1438/feudalism-in-medieval-japan/.