The unique security environment of any country is shaped by geopolitical conditions and historical background, and is addressed by a corresponding strategic concept. Such a strategy cannot be fixed or static; rather, it must evolve with environmental changes. In Israel, the traditional strategic concept that has existed since the inception of the state has undergone significant transformation, reflecting global and local shifts, both within and outside the country. In terms of changes in the strategic environment, Israel's traditional doctrine—which focused on deterring surprise attacks from neighboring Arab states, establishing a rapid mobilization system centered on reservists, and advocating for a short-term decisive war fought on enemy territory rather than within its own borders—has been fundamentally restructured in response to various shifts. In addition, in Israel, which was founded on secular Zionism, the social landscape has changed significantly owing to the rise of religious Zionism and the increasing influence of ultra-Orthodox Jews. These changes have generated new dynamism in its strategic posture, which is distinct from the past. The outbreak and development of the Gaza war unmistakably brought this dynamic to the foreground, exposing the fragility of the tenuous stability Israel has managed to maintain.