Top 5 Reasons Why America Keeps Fighting Foolish Wars:
1. Because We Can.
The most obvious reason that the United States keeps doing these things is the fact that it has a remarkably powerful military, especially when facing a minor power like Libya. As I wrote a couple of weeks ago, when you've got hundreds of planes, smart bombs, and cruise missiles, the whole world looks like a target set. So when some thorny problem arises somewhere in the world, it's hard to resist the temptation to "do something!"
2. The U.S. Has No Serious Enemies.
A second factor that permits the United States to keep waging these optional wars is the fact that the end of the Cold War left the United States in a remarkably safe position. There are no great powers in the Western hemisphere; we have no "peer competitors" anywhere (though China may become one sooner if we keep squandering our power foolishly); and there is no country anywhere that could entertain the idea of attacking America without inviting its own destruction. We do face a vexing terrorism problem, but that danger is probably exaggerated, is partly a reaction to our tendency to meddle in other countries, and is best managed in other ways. It's really quite ironic: Because the American homeland is safe from serious external dangers (which is a good thing), Americans have the luxury of going abroad "in search of monsters to destroy" (which is not).
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Is America Addicted to War?
The top 5 reasons why we keep getting into foolish fights.
BY STEPHEN M. WALT | APRIL 4, 2011
3. The All-Volunteer Force.
A third enabling factor behind our addiction to adventurism is the all-volunteer force. By limiting military service only to those individuals who volunteer to do it, public opposition to wars of choice is more easily contained. Could Bush or Obama have kept the Iraq and Afghanistan wars going if most young Americans had to register for a draft, and if the sons and daughters of Wall Street bankers were being sent in harm's way because they got an unlucky number in the draft? I very much doubt it.
4. It's the Establishment, Stupid.
A fourth reason we keep meddling all over the world is the fact that the foreign-policy establishment is hard-wired in favor of "doing something." Foreign-policy thinking in Washington is dominated either by neoconservatives (who openly proclaim the need to export "liberty" and never met a war they didn't like) or by "liberal interventionists" who are just as enthusiastic about using military power to solve problems, provided they can engineer some sort of multilateral cover for it. Liberal interventionists sometimes concede that the United States can't solve every problem (at least not at the same time), but they still think that the United States is the "indispensable" nation and they want us to solve as many of the world's problems as we possibly can.
5. Congress Has Checked Out.
The authority to declare war is given to Congress, not the president, but that authority has been steadily usurped ever since World War II. Although the Constitution could not be clearer on this point, modern presidents clearly feel no constraints about ordering U.S. forces to attack other countries, or even to fully inform Congress as to what we might be doing in secret. In practice, therefore, the vaunted system of "checks and balances" supposedly enshrined in our Constitution simply doesn't operate anymore, which means that the use of America's military power has been left solely to the presidents and a handful of ambitious advisors (see No. 4 above). This is not to say that public opinion doesn't figure into their calculations (i.e., they've got pollsters and political advisors too), but it is hardly a binding constraint.