Parachute Battalion occupying Le Bas de Ranville, and the 13th Parachute Battalion holding Ranville while the 7th Parachute Battalion had been moved into reserve. The 6th Airlanding Brigade was poised to commit its two battalions to extend the bridgehead. The 1st Special Service Brigade, which had temporarily came under the command of the division, was holding villages to the north and north-east of DZ N. Aftermath Analysis Operation Tonga was a success, with all of the tasks allotted to 6th Airborne Division being achieved within the time limits imposed on the individual units of the division. These tasks had been achieved despite the problems caused by a large number of the airborne troops being scattered throughout the operational area assigned, due to a combination of bad weather and poor navigation on the part of the pilots of the transport aircraft carrying them. Glider-borne airborne troops also suffered from navigational errors, with ten of the eighty-five gliders assigned to the division landing more than from their landing-zones. However, an unintended but beneficial result of these scattered drops was that the Germans were greatly confused as to area and extent of the airborne landings. Casualties The 6th Airborne Division suffered a total of 800 casualties between 5 June and 7 June, out of the 8,500 men deployed. German losses are estimated to be estimated 400 dead and a further 400 captured. In addition, fourteen tanks were lost during counterattacks around the Orne River and Caen canal bridges. Other losses include one gunboat on the Caen canal. Subsequent role Between 7 June and 10 June, the 6th Airborne Division repulsed a number of German attacks. The division retained control of the area between the Rivers Orne and Dives until 14 June, when the 51st (Highland) Infantry Division took over the southern part of the Orne bridgehead. On 10 June, the decision was taken to expand the bridgehead to the east of the River Orne, with 6th Airborne Division tasked with achieving this. However, the division was deemed not to be strong enough to achieve its objective; the 3rd Parachute Brigade was reinforced with the 5th Battalion, Black Watch (Royal Highland Regiment). On 11 June, the 5th Black Watch launched an attack on the town of Bréville, but was met with extremely heavy resistance and was repulsed after suffering a number of casualties. The next day, the 3rd Parachute Brigade's entire front was subjected