ABSTRACT
This part introduction presents an overview of the key concepts discussed in the subsequent chapters. The part establishes theoretically the Democratic Peace Proposition, the most fundamental proposition that states the most important fact of certain time. It is that democracy is a method of nonviolence. The part finds that: democracies do not commit violence or war against each other, the more democratic two regimes the less severe their violence against each other, and the more democratic a regime the less severe its foreign violence. Democracy institutionalizes a way of solving without violence disagreements over fundamental questions. Democracy promotes a culture of negotiation, bargaining, compromise, concessions, the toleration of differences, and even the acceptance of defeat and it unleashes forces that divide and segment the sources of violence.
