Warring Democracies...

I've witnessed this debate on Usenet several times, and it always follows the same pattern:
1. Somebody casually brings up the old factoid about how no two democracies have ever gone to war with one another.

2. Somebody jumps in and lists a dozen or so wars which have been fought between democracies.

3. Somebody else points out that those countries weren't democratic, not really.

4. Everybody gets into arguments over who was or was not democratic.

5. The argument fizzles out except for two guys continuing to argue over whether the American Civil War was about slavery.

In any case, here is the traditional list of wars which may or may not have been fought between democracies:

War Between Democracies by Matthew White