Known for centuries, a tenet of classical liberalism, the pacific nature of democracy has become largely forgotten or ignored in the last half-century. That democracy is inherently peaceful is now probably believed by no more than a few prominent peace researchers. In part this has been due to the intellectual defection of Western intellectuals from classical liberalism to some variant of socialism, with its emphasis on the competitive violence and bellicosity of capitalist freedoms. Many intellectuals, and in particularly European and Third World peace researchers, have come to believe that socialist equalitarianism is the answer to violence; others, particularly American liberals, believe that if the socialist are wrong, then at least democracies are no better than other political systems in promoting peace.
Communists, when in control of a nation, have murdered more than 3.6 times the number of people killed in combat in all wars, including the two world wars.
"The Polarity Principle:" The more government, the more violence. By ‘more government’ is meant more centralization of government power, more intervention in personal, social, and economic affairs and activities, more limits on political criticism and competition, and more narrowing of electoral choices. In other words, by ‘more government’ is meant less freedom, less civil liberties, political rights, and economic freedom.