We're doing it again. We keep on trying to save the world. And, of course, the world is predictably dissatisfied with the way that we go about it.
View the blog posts from around the world. Count the number of people that people that post that America has no business in Iraq. Compare that to the number that point out (or even know) that Iraq was a British colony from 1918 (the end of the Ottoman Empire after WWI) until 1932. See http://www.angelfire.com/nt/Gilgamesh/1918.html Sure, Iraq was governed by a series of despots culminating with Saddam Hussein, but nobody expected the Brits to do anything about it.
The situation in Lebanon is not good. There is a Christian minority living under a Moslem government backed by Syrian troops. But don't expect the French to do anything about it. After all, all they did was to create the country. See http://almashriq.hiof.no/lebanon/900/902/Kamal-Salibi/ That is why the Lebanese flag is a tricolor (French flag) with a ceder tree on it.
Take the Sudan. Britain had an army in the Sudan until 1956. Since that time, there has been constant unrest, until the Moslem government took over in 1983. Then things started getting really bad. In 1986, the United Nations referred to the situation there as "a disaster of major proportions". They just didn't do anything about it. Twenty years of inaction.
Remember Vietnam? Formerly French Indo-china?
These aren't problems that America created. No more so than we allowed Hitler to spread his evil throughout Europe. That would have been Neville Chamberlain. Remember "peace in our time?" We're not the ones selling Iran nuclear technology. That would be Russia.
We're just the ones that the world waits for to clean up the mess. So that they can criticize how we went about it.