"War is not the instrument he thought it was"

Hilzoy has a long and beautiful post on why using war to set up democracy in other countries is so hard. There are lots of reasons for this, but the reason she discusses hadn't really occurred to me before.

we should never forget how astonishing it is that people vying for power are willing to concede even when they believe that the rules have been broken, out of respect for the rule of law and for courts they believe to be profoundly in error.

In many countries, there are no established procedures for resolving conflicts, and certainly none that command the kind of allegiance that would lead people to yield even when they believe that they deserve to have won. In those countries it will always be tempting to think: well, this election was stolen from us, and this year-old Constitution is unfair; why not fight for a better one? Wouldn't our opponents do the same?

This is especially likely in a country in which the price of losing a political struggle has always been not just being in the minority party in Congress, but death or subjugation. And it takes a long time to learn to trust that losing power will not cost you your life or your freedom, when all your experience to date has taught you the opposite.

When you use force to liberate a country, like Kuwait, that has only been occupied for a short time, you can hope that its people will accept their previous government, and that whatever made that government function in the past will have survived. But when you liberate a country like Iraq, a country whose people have been brutalized, you risk loosing Hobbes' "war of all against all" on its people. You remove the sovereign who has kept that war in check, without thereby creating any of the political virtues that allow alternate forms of government, like democracy, to function.