Front Mission 4 (フロントミッション フォース, Furonto Misshon Fuoosu) is a tactical role-playing game developed and published by Square Enix Co., Ltd. as the fourth main entry and sixth entry overall in the Front Mission series. It was released on December 18, 2003 in Japan and on June 15, 2004 in North America. Like other Front Mission titles, Front Mission 4 is part of a serialized storyline that follows the stories of various characters and their struggles involving mecha known as wanzers.