since the draw-down in forces triggered by the 2010 defense review, the units the Laundry can draw upon have been depleted. There are now just two SAS squadrons, 120 men in total, to cover all contingencies: and only half of them are available at any given time. If the shit really hits the fan they can draw on the regular Army and the Air Force for support, but there will be delays in getting everyone up to speed.