Over the course of history, the myth of isolationism has snuck its way into increasing popularity and belief, evolving into the current paradigm and school of thought that is non-interventionism or non-interference. A number of politicians in the U.S. today wish to switch U.S. foreign policy to this framework. Ron Paul, a devoted non-interventionist, has been notorious for his inaccurate claims that the U.S. has been subject to terrorist attacks because of the many U.S. bases throughout the world. According to this belief, if the U.S. followed a non-interventionist policy, 9/11 would have never happened.
Yet Paul and others who subscribe to this view have serious facts to wrestle with. First is that these other nations, such as Denmark, France, Germany, the Netherlands, Spain, Sweden, and Switzerland, that are very much non-interferers in our modern world, are also subject to terrorist attacks. These countries are not "occupiers," in Ron Paul's parlance, but somehow they fall subject to attacks nonetheless. Secondly, the U.S. leaving its bases and involvement in Beirut as well as Somalia after suffering losses in attacks and conflicts has only encouraged radical Islamists rather than caused them to cease. In the theoretical framework of non-interventionists, this should have appeased those wishing to visit harm upon America.
In light of 9/11, however, it is highly probable that radical Islamists had already been at war with the U.S. since before any base went up in Beirut or Somalia. Said Islamists would sooner declare a fatwa than accept a withdrawal of troops. In the specific cases mentioned above, the U.S., in their eyes, was perceived to lack the resolve to fight after lives were lost and the stakes were raised.
The power-projection that the U.S. possesses is what aids so greatly in protecting America, freedom, and democracy throughout the world. If the U.S. withdraws its troops everywhere, it sacrifices an important role in shaping the world in a positive way. This does not mean that interference is always the answer, however, It requires good judgment and prudence to choose from the forms, quantity, and variations of statecraft. This includes the "use of assets or the resources and tools (economic, military, intelligence, [and] media)"3.
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The modern world is globalized, connected, and increasingly dangerous. The U.S. should be careful but not timid, while being willing to engage oppression and tyranny whenever and wherever they may appear. Circling the wagons would be unjust for freedom, democracy, and humanity everywhere. Missed opportunities and failed attempts have happened in Somalia, Rwanda, Iran, Bosnia, and most recently in Iraq with the Christians. Responsibility, good judgment, and a resolve to learn and adapt to new challenges -- not the neutrality of non-interventionism -- should be characteristic of the U.S.'s foreign policy stance.
To sit back and watch genocide occur is of the same neutrality that led to Hitler's rise to power. As Elie Wiesel said, "[n]eutrality helps the oppressor, never the victim. Silence encourages the tormentor, never the tormented." A belief in practicing non-interference is indicative of the appeasement which Reagan warned about; it is perilous, and just as foolish as devastating an economy and weakening a country from within.
http://www.americanthinker.com/2012/02/the_myth_and_danger_of_non-interventionism.html