International diplomats will gather Jan. 22 in the Swiss town of Montreux to hammer out a settlement designed to end Syria's three-year civil war. The conference, however, will be far removed from the reality on the Syrian battleground. Only days before the conference was scheduled to begin, a controversy threatened to engulf the proceedings after the United Nations invited Iran to participate, and Syrian rebel representatives successfully pushed for the offer to be rescinded. The inability to agree upon even who would be attending the negotiations is an inauspicious sign for a diplomatic effort that was never likely to prove very fruitful. There are good reasons for deep skepticism.