Is it true that there has never been a war between two democracies, excluding civil wars? One part of my extended brain trust, a highly unreliable source, claims that this is a natural fact, Jack, and I have not yet thought of an instance in which one democracy declared war against another democracy. In a quandary, we resolved to consult the Dope, and now refer this question to your esteemed self. Prithee, O ocean of fathomless learning, we sincerely and earnestly entreat you to [additional fawning verbiage deleted] –J.S., Berkeley, California

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Don’t gush, lad, it doesn’t leave room for the cartoon. Cecil does not dispute the general proposition that war between democracies is relatively rare. Common sense alone suggests that embarking upon a military adventure is simpler for a king or dictator than it is for a head of government answerable to a parliament. But proponents of this idea argue that a war between democracies has never occurred. One arrives at this comforting conclusion chiefly by setting up the rules to exclude all the nonconforming cases. The most egregious omission is civil wars, which account for a high percentage of the world’s violent conflicts–159 of 575 wars between 1816 and 1980, by one count. The spectacle of the American Civil War, in which two popularly elected governments engaged in four years of the most brutal slaughter, refutes the bald notion that citizens will not vote for politicians who send them off to be killed. Clearly they will if they think the stakes are high enough.

One would like to believe democracy = peace, but if we look at the big picture we find little to persuade us that it is a sure thing. Nazi Germany was not a democracy after 1933, but Hitler had been freely elected and the Nazis dominated the democratically chosen Reichstag. The United States and France conducted wars of great savagery in Vietnam and Algeria. The U.S. helped topple the elected Allende regime in Chile, with murderous consequences for the Chilean people.