Maybe, but I don't think so. After listening to all the analysis and trying to glean facts from the CPA and CENTCOM briefings, here's what I think about Samarra...
The Brinks delivery truck, after being hit on 5 consecutive runs, received a better armed escort than usual. The robbers, having been lulled by earlier successes and driven by a need for new cash, gambled on catching the convoy off guard.
We won, they lost.