Iran’s support for Assad’s crackdown is already alienating its Sunni allies:
GAZA CITY, Gaza Strip (AP) — Gaza’s Hamas rulers said Wednesday they would stay on the sidelines if war breaks out between Israel and Iran, easing a key Israeli concern and distancing the Islamic militants from their sponsors in Tehran.
The longer this goes on, the more our enemies will come to hate each other.
Along those lines, Kissinger wrote in Diplomacy:
When Hitler attacked the Soviet Union, the then Senator Truman rated the dictatorships as being morally equivalent, and recommended that America encourage them to fight to the death: “If we see that Germany is winning, we ought to help Russia, and if Russia is winning we ought to help Germany and that way let them kill as many as possible, although I don’t want to see Hitler victorious under any circumstances.”
Which is basically what we did, waiting four years to open the second front, mainly to make sure Stalin didn’t gobble up all of Europe. In Syria, we don’t have to do anything other than watch our enemies go at each other, poisoning their mutual relations and making future collaboration against the Great Satan and the Little Satan that much less likely. As I wrote the other day, this will be terrible for Syria’s civilians, especially the Christians, but there’s nothing we can do to change that. (Our occupation of Iraq resulted in the virtual disappearance of Christianity from that country, so even if invading Syria were in our interest, the Christians would be screwed.)
I realize that foreign policy is too cold-blooded a sport for people of Wilsonian temperament, but it seems inarguable that the best course for the United States is to vigorously wring our hands and take all steps short of action.