[Guardian]: Over Bosnia, Kosovo and over Afghanistan, voices on both the Left and Right have been consistently raised to object to the use of force. Where these voices have belonged to pacifists, they have my respect, but most often they have belonged to the purely selfish, the pathologically timid, or to those who somehow believed that however bad things were in Country X, the Americans were always worse.
It does seem noteworthy that the left favored US military intervention in Bosnia, and opposes it in Iraq, and vice versa on both counts for the right.
[More interesting links at bottom, if you read all the way through the article.]