History of the Royal Military Police out their duties. In addition, 28 Officers were killed or died whilst serving with CMP units. On 6 June 1944, the Allies launched Operation Overlord, the invasion of the European mainland. CMP units taking part included: "The Battle of Normandy and subsequent battles would never have been won but for the work and co-operation of the Provost on the traffic routes." (Field Marshal Montgomery, 1945) In 1944, the Allies launched Operation Market Garden, the airborne assault to capture bridges over the Lower Rhine in the Netherlands. The 1st (Airborne) Divisional Provost Company, CMP captured the police station in Arnhem, but
Operation Market Garden for air supply. Montgomery initially suggested "Operation Comet", a limited airborne "coup de main" operation that was to be launched on 2 September 1944. Comet envisioned using the British 1st Airborne Division, along with the Polish 1st Independent Parachute Brigade, to secure several bridges over the Rhine River to aid the Allied advance into the North German Plain. The Divisional Headquarters for the British 1st Airborne Division, with the 1st Airlanding Brigade and the Polish 1st Independent Parachute Brigade were to land at Nijmegen, the British 1st Parachute Brigade was to land at Arnhem, and the British 4th Parachute Brigade