Gulf Co-operation Council states have long been the focus of efforts by US administrations and their regional military structure Central Command (Centcom) to enforce the Pax Americana. But with some GCC allies already feeling distanced from high-level contacts in Washington, the resignation of General Stanley McChrystal as head of US Forces and the International Security Assistance Force (ISAF) in Afghanistan, and his replacement by Centcom commander General David Petraeus, threatens to leave them feeling even more distanced from the US civil-military relationship.