on the command structure of the Yugoslav partisans. Their objective was the elimination of the partisan-controlled Supreme Headquarters and the capture of Tito. The offensive took place in April and May 1944. The Waffen-SS units involved were the 500th SS Parachute Battalion and the 7 SS Prinz Eugen. The assault started when a small group parachuted into Drvar to secure landing grounds for the following glider force. The 500th SS Parachute Battalion fought their way to Tito's cave headquarters and exchanged heavy gunfire resulting in numerous casualties on both sides. By the time German forces had penetrated into the cave, Tito had already escaped. At the end of the battle, only 200 men of the 500th SS Parachute Battalion remained unwounded. Baltic states In Estonia, the Battle of Narva started in February. The battle can be divided into two phases: the Battle for Narva Bridgehead from February to July and the Battle of Tannenberg Line from July to September. A number of volunteer and conscript Waffen-SS units from Norway, Denmark, the Netherlands, Belgium, and Estonia fought in Narva. The units were all part of the III SS (Germanic) Panzer Corps in Army Group North, which consisted of the 11th SS Panzergrenadier Division Nordland, the 4th SS Volunteer Panzergrenadier Brigade Nederland, the 5th SS Volunteer Sturmbrigade Wallonien, the 6th SS Volunteer Sturmbrigade Langemarck, and the conscript 20th Waffen Grenadier Division of the SS (1st Estonian), under the command of Obergruppenführer Felix Steiner. Also in Army Group North was the VI SS Corps, which consisted of the 15th Waffen Grenadier Division of the SS (1st Latvian) and the 19th Waffen Grenadier Division of the SS (2nd Latvian). Latvian Waffen SS and German army units held out in the Courland Pocket until the end of the war. Normandy Operation Overlord, the Allied "D-Day" landings in Normandy, took place on 6 June 1944. In preparation for the expected landings, the I SS Panzer Corps Leibstandarte SS Adolf Hitler was moved to Septeuil to the west of Paris in April 1944. The Corps had the 1 SS Leibstandarte SS Adolf Hitler, 12 SS Hitlerjugend, the 17 SS Götz von Berlichingen and the army's Panzer-Lehr-Division divisions assigned to it. The Corps was to form a part of General Leo Geyr von Schweppenburg's Panzer Group West, the Western theatre's armoured reserve. The Corps was restructured on 4 July 1944 and only the 1 SS and the 12