[scarmig]

Eh. The democratic peace theory really just relies on a perpetual no-true-Scotsman approach. Either something's not really a democracy or not really a war.

Native American tribes? Well, they had democratic societies, but they're very different from the liberal state that has come to predominate in contemporary times. Franco-Prussian conflict? Prussia's legislatures were dominated by a rich hereditary landowning class. American Civil War? Well, civil wars don't count, and the franchise wasn't universal. World War I? Well, Germany might have had elections and might have had a wider effective franchise than many parts of the USA, but it was a bad guy, so it doesn't count. Various conflicts fostered by the Western liberal democracies (Iran, Chile, etc.)? Well, those were coups and not really wars.

What "democratic peace" really seems to mean is "countries that are under the umbrella of the United States and have highly developed economies don't go to war against each other." Give it 20 years time, and when the newly elected government of China gets into a shooting war with the government of the United States over some stupid shit (poll driven aggression in the strait?) we'll go back to arguing that China isn't a real democracy because it had only had one or two national elections, or the United States isn't a real democracy because all its state apparatus and elections are controlled by an unelected elite.

[nl]

countries that are under the umbrella of the United States and have highly developed economies don't go to war against each other

Except in the case of the Falklands War. And the Israeli bombing of the Iraqi nuclear reactor (Iraq was a US ally at the time). And the Turkish/Greek air battles over the Aegean Sea (eg, Turkish & Greek F-16's dogfighting and crashing into each other in 2006: http://en.wikipedia.org/wiki/Greek%E2%80%93Turkish_relations...).

I agree with your general principle though.