From super-duper counter-insurgency blogger Abu Muqawama:
In Lebanon, in September 1983, the U.S. lent direct support to what it assumed was a national institution, the Lebanese Army, in the battle at Souk el-Gharb. By doing so, it became, in the eyes of the rest of the Lebanese population, just another militia. The U.S. history in Iraq is more complicated, obviously, but what's happening now is the U.S. is throwing our lot in with ISCI in the upcoming elections.
The amazing thing is just how obviously folly is it that the U.S. is intervening on behalf of one faction, and yet it's still happening. Anyway, Abu Muqawama's reference to Lebanon strikes me as just right. In so far as people in the U.S. remember the U.S.'s intervention in Lebanon, I'm sure we remember first the bombing of the Marines barracks and then, maybe, that the Marines were there as part of a peacekeeping mission. Except that's not how Lebanese remember it. They remember something closer to the reality, namely that the U.S. took sides. And that operation didn't end particularly well.