Opinion (Robert Kagan): Our 'Messianic Impulse'

It took 50 years after the nation's founding for the first war fought on foreign soil, against Muslim 'pirates' in Africa

As Americans struggle to find an answer to the serious problems in Iraq, larger and broader questions beckon. How did we wind up in Iraq in the first place? Some argue that we were too aggressive and self-righteous in promoting our principles, too meddlesome, too arrogant in seeking to transform the world, too quick to intervene militarily in crises far from our shores and remote from our interests. If the United States would only change its approach to the world, if it understood the virtues of limits, modesty and humility, we could avoid foreign policy debacles and the world would be a safer place.

This is actually a very old debate, which Americans have thrashed out in every generation. The expansive, idealistic, interventionist approach to the world has deep roots in the American character, going back to the nation's founding and the universal principles of liberalism embedded in the Declaration of Independence. As George Will once put it, the "messianic impulse" has been "a constant of America's national character, and a component of American patriotism."

But no less constant has been opposition to this grand vision, which critics since the nation's founding era have regarded as a recipe for endless war abroad and the undoing of American democracy at home.

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