Why is Haditha important?

"We're starting to see some attempt to contextualize the deaths of those 14 Marines - not in our mainstream media sources, which can't be bothered with anything outside their standard frames, but in the alternative conservative press. (The more detailed article in the New York Post requires a subscription, and I haven't read it for that reason.)

Here's the synopsis:

As usual, reporters have focused on the loss of life without any apparent effort to understand the context of the fighting that led to these casualties. I suggested that the casualties stem from Coalition forces having stepped up their campaign in Al Anbar province to destroy the insurgency by depriving it of its base in the Sunni Triangle and its "rat lines" — the infiltration routes that run from the Syrian border into the heart of Iraq...

...As this satellite image shows, the town of Haditha sits astride the Main Supply Route linking the U.S. garrison at the Dam itself with its bases at Al Asad, Camp Fallujah, Junction City (outside of Ramadi) and Baghdad in the south."
CounterColumn

I was just asking this question the other day here and here, I think Jason has provided some excellent answer.
this is the google maps of the area.

This view shows the area in the context of its relation to Baghdad. The dam is in the top left corner, and Baghdad is bottom right hand corner.

Looking at these pictures it strikes me the sunni areas are always portrayed as resource poor, NO OIL, But I see a lot of water.