I was listening to this diavlog recently and one of the participants (Daniel Deudney) remarked that the Wilsonian “Make the world safe for democracy” mantra of World War I was not so much referring to bringing democracy to monarchic parts of the world so much as making the world non-threatening enough so that America could maintain it’s non-militaristic way of life and avoid becoming a “Garrison State”.
I haven’t thought about it for a while, but several years ago I thought that was the strongest argument for the Iraq war. Not sufficient on it’s own, but a good reason. The threat in WWI was European militarism; now it’s “The Gap” but the example still holds. The term “Garrison State” is a useful one to describe a militarized police state.