his article aims to explain the divergence in the metamorphosis patterns of military-civilian relations in the regimes of Egypt and Israel, exploring why, despite similar security imperatives, the rules of the game in these two political units have gravitated toward two opposite poles. The central research question asks: how has the "Open Access Order" or "Limited Access Order" emerging from the institutional environment of politics and militarism affected military-civilian relations in Israel and Egypt? In this regard, the chosen hypothesis posits that the "Open Access Order" in Israel, through the institutionalization of the rules of the game, has facilitated the regulated presence of the military in politics in the form of "partnership control"; whereas in Egypt, the dominance of a "Limited Access Order" has created a path in which military involvement in power is only possible through breaking the rules of the game and resorting to "coups." The research findings indicate that the persistence of these behavioral patterns is the product of path-dependency mechanisms, through which deep-rooted historical institutions and beliefs overshadow current strategic choices and guide the metamorphosis of military-civilian relations into predetermined paths. This study employs a comparative-historical method, and data were collected through documentary and library research.