Question: Who were the two parties fighting in the war where Kajiwara Heima served as karō?
Sentence (from "Boshin War"): The Boshin War (戊辰戦争 , Boshin Sensō , "War of the Year of the Yang Earth Dragon") , sometimes known as the Japanese Revolution, was a civil war in Japan, fought from 1868 to 1869 between forces of the ruling Tokugawa shogunate and those seeking to return political power to the Imperial Court.
Relevant evidence: Yes