A very long read but well worth the time as the article presents a very clear presentation as what fundamentalist, evangelical, and liberal christianity is in America today and what the political consequences of all three groups mean for the future of our country. While I don't personally agree with all of the positions the author takes he still provides a thought provoking discussion on very important question facing America in regards to our theological beliefs.
EVANGELICALS AND FOREIGN POLICY
Religion has always been a major force in U.S. politics, policy, identity, and culture. Religion shapes the nation's character, helps form Americans' ideas about the world, and influences the ways Americans respond to events beyond their borders. Religion explains both Americans' sense of themselves as a chosen people and their belief that they have a duty to spread their values throughout the world. Of course, not all Americans believe such things -- and those who do often bitterly disagree over exactly what they mean. But enough believe them that the ideas exercise profound influence over the country's behavior abroad and at home.
In one sense, religion is so important to life in the United States that it disappears into the mix. Partisans on all sides of important questions regularly appeal to religious principles to support their views, and the country is so religiously diverse that support for almost any conceivable foreign policy can be found somewhere.
Yet the balance of power among the different religious strands shifts over time; in the last generation, this balance has shifted significantly, and with dramatic consequences. The more conservative strains within American Protestantism have gained adherents, and the liberal Protestantism that dominated the country during the middle years of the twentieth century has weakened. This shift has already changed U.S. foreign policy in profound ways.
These changes have yet to be widely understood, however, in part because most students of foreign policy in the United States and abroad are relatively unfamiliar with conservative U.S. Protestantism. That the views of the evangelical Reverend Billy Graham lead to quite different approaches to foreign relations than, say, those popular at the fundamentalist Bob Jones University is not generally appreciated. But subtle theological and cultural differences can and do have important political consequences. Interpreting the impact of religious changes in the United States on U.S. foreign policy therefore requires a closer look into the big revival tent of American Protestantism.
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http://www.foreignaffairs.org/20060901faessay85504/walter-russell-mead/god-s-country.html