"British Medical Services in the Second World War" Medical Transport: Greek troops undergoing aspects of mountain training which took place at the Mountain Warfare Training Centre at Ain Akrine in the Western Desert. Mules are being used to transport 'wounded' soldiers. The mules are fitted with a special stretcher harness known as a 'mule litter'. The 'patients' had already travelled some distance having been carried by stretcher bearers, the mules will now take them to a Dressing Station.