A coup d'état is defined as the sudden, often illegal overthrown or seizure of political power by a group, typically involving the military or other influential factions. This act can result in the disbanding or replacement of the current government and altering the established political order. Coups generally occur without the consent of the public and can lead to significant political instability and civil unrest. The motives behind a coup may range from ideological shifts to power struggles among political elites. Understanding coups is crucial for analyzing state governance and international relations.