Well, you know the old saying about no honor among thieves? It seems to apply to terrorists and Ba’athists as well. The native Iraqi “insurgents” don’t seem to be getting on that well with their foreign “allies”:

Marines patrolling this desert region near the Syrian border have for months been seeing a strange new trend in the already complex Iraqi insurgency. Insurgents, they say, have been fighting each other in towns along the Euphrates from Husayba, on the border, to Qaim, farther west. The observations offer a new clue in the hidden world of the insurgency and suggest that there may have been, as American commanders suggest, a split between Islamic militants and local rebels…

…Capt. Chris Ieva, a fast-talking 31-year-old from North Brunswick, N.J., said he could tell whether an area was controlled by foreign insurgents or locals by whether families had cellphones or guns, which foreign fighters do not allow local residents to have for fear they would spy on them. Marines cited other tactics as being commonly employed by foreigners. Sophisticated body armor, for example, is one sign, as well as land mines that are a cut above average, remote-controlled local mines, and well-chosen sniper positions.