The Islamic Republic of Iran is facing unprecedented pressure from both within and outside its borders. Internally, economic collapse, widespread political disillusionment, and mass rejection of religious authoritarianism have profoundly weakened the regime’s legitimacy. Externally, Iran’s regional influence is diminishing as its proxies suffer military defeats and diplomatic isolation. Although the precise timing is uncertain, the convergence of these pressures makes regime change in Iran increasingly likely. For Western policymakers, this is not the time for short-term crisis management—it is the time to prepare for a democratic transition.