The Battle of Yamazaki was fought between Mitsuhide AKECHI, who had defeated Nobunaga ODA in the Honnoji Incident in June and July 1582, and Hideyoshi TOYOTOMI returning from an attack on Takamatsu-jo Castle (in Bicchu Province); the scene of the battle was Yamazaki (Yamazaki, Shimamoto-cho, Mishima-gun, Osaka Prefecture and Oyamazaki-cho, Otokuni-gun, Kyoto Prefecture), located on the border between Settsu Province and Yamashiro Province, where Toyotomi's forces passed on their way to Kyoto and clashed head on with Akechi's on July 2.
山崎の戦い（やまざきのたたかい）は、天正10年（1582年）6月に本能寺の変で織田信長を討った明智光秀に対して、高松城(備中国)の攻城戦から引き返してきた豊臣秀吉が、6月13日（西暦7月2日）京都へ向かう途中の摂津国と山城国の境に位置する山崎（大阪府三島郡(大阪府)島本町山崎、京都府乙訓郡大山崎町）で、明智軍と激突した戦いである。