The purpose of this book is theoretical study of the coup d’état that is third, next to democratic election and monarchical succession, way of obtaining political power in a state. In more than half world’s states, a coup until quite recently was the main method of changing political leadership. Paradoxically, this political important phenomenon is rarely a subject of study.

A coup is a matter of very risky. The result of a successful coup is the seizure of power by the executors, but in a case of failure is rather sure that they finish in a prison for the years as the traitors of state, what more they can be eventually assassinate at once or sentenced to death afterwards.

Coups d’etat can be set apart from revolutions, revolts and uprisings. In contrast to a revolution coup aims only for substituting one ruling group for another, not for destroying existing social and political system that normally are left untouched or, differently speaking, not for making a radical transformations. Also a scale and consequences of the revolutions are far bigger, because they play a role of turning points in the history of world changing the conditions under which whole nations live. Differently form revolts and uprisings coups have not a mass character.