In Japanese, Shaguma (赤熊) means "Red Bear". It is also the name of a type of headgear worn by the officers of the Japanese Imperial troops in the Boshin War (1867-68).
Usage
See Special:Whatlinkshere/Etymology:Shaguma for a list of articles using this term.
This is an etymology page: a page detailing the origins of terminology used in the series in regards to real world culture and history.