Regime change is the partly forcible or coercive replacement of one government regime with another. Regime change may replace all or part of the state's most critical leadership system, administrative apparatus, or bureaucracy. The regime change may be a transition from autocracy to democracy, or from democracy to autocracy, or from one type of autocracy to another type of autocracy. Regime change may occur through domestic processes, such as revolution, coup, or reconstruction of government following state failure or civil war. It can also be imposed on a country by foreign actors through invasion, overt or covert interventions, or coercive diplomacy. Regime change may entail the construction of new institutions, the restoration of old institutions, and the promotion of new ideologies.