The US MUST Intervene ... to Advance Someone Else's Cause

Mindless Interventionism Is Bad For America (Daniel Larison) from the American Conservative
"They can’t see any good reason not to, and they’ll dismiss any reason that others might give them. It doesn’t seem to matter whether doing these things serves any discernible U.S. interest, nor does it matter what the costs or possible negative consequences might be. According to this view, the U.S. should intervene again and again because it may advance someone else’s cause. This sets up the U.S. to be suckered into one conflict after another with no end in sight ..."