Heeresgruppe E
Colonel General Alexander Löhr tried to hold the Independent State of Croatia against the People's Liberation Army. A major offensive by the People's Liberation Army, which began on 12 April 1945, drove the German troops together in the Slovenian-Austrian border area. A few units escaped and eventually surrendered to British forces that had occupied Styria and Carinthia. Alexander Löhr reached a partial agreement with the British Commander-in-Chief to accept the German units. On the day of the surrender, 8 May 1945, the mass of the Army group was still three day marches away from the Austrian border. Until 15 May, numerous units managed to escape to Austria. 150,000 German soldiers of the Army group were captured by Tito's forces. At that time, Army Group E consisted of seven German divisions, two Cossack divisions of the XV SS Cossack Cavalry Corps and nine Croatian divisions. 220,000 members of the Croatian forces who fled to Austria with Army Group E were extradited by the British to the Tito partisans after their surrender. Several thousand of them were subsequently killed in the Bleiburg Massacre.