Aaron Miller : Debating what went wrong in Iraq not useful ; protecting U.S. interests now is . Iraq is complex , he says , with sectarian groups at odds , neighbors with own interests . He says U.S. must work with Iraq 's neighbors , even ISIS , to halt al-Assad . Democracy can wait . Aaron Miller : Iraq must help right Americans military , but without combat forces . Point is to check terror .
Aaron Miller : Debating what went wrong in Iraq not useful ; protecting U.S. interests now is . Iraq is complex , he says , with sectarian groups at odds , neighbors with own interests . He says U.S. must work with Iraq 's neighbors , even al-Assad , to halt ISIS . Democracy can wait . Miller : U.S. must help right Iraqi military , but without combat forces . Point is to check terror .