From the Washington Post:

The Marine approach -- creative, aggressive and, at times, unorthodox -- has won many admirers within the military. The Marine emphasis on patrolling by foot and interacting with the population, which has helped to turn former insurgent strongholds along the Helmand River valley into reasonably stable communities with thriving bazaars and functioning schools, is hailed as a model of how U.S. forces should implement counterinsurgency strategy.

But the Marines' methods, and their insistence that they be given a degree of autonomy not afforded to U.S. Army units, also have riled many up the chain of command in Kabul and Washington, prompting some to refer to their area of operations in the south as "Marineistan." They regard the expansion in Delaram and beyond as contrary to the population-centric approach embraced by Gen. Stanley A. McChrystal, the U.S. and NATO commander in Afghanistan, and they are seeking to impose more control over the Marines.

The U.S. ambassador in Kabul, Karl W. Eikenberry, recently noted that the international security force in Afghanistan feels as if it comprises 42 nations instead of 41 because the Marines act so independently from other U.S. forces.

"We have better operational coherence with virtually all of our NATO allies than we have with the U.S. Marine Corps," said a senior Obama administration official involved in Afghanistan policy.
I personally haven't seen or heard of this before, but then I'm not really in a position to know. Thoughts?