箱館戦争はこだてせんそう Noun English jmdict 1 noun (common) (futsuumeishi) historical term Battle of Hakodate (battle of the Boshin War; 1868-1869) See also: 戊辰戦争 (ぼしんせんそう) Other forms 函館戦争 【はこだてせんそう】 (word containing irregular kanji usage)