 Complete the following phrase:  Fighting continued for a short while after the formal surrender of German Army Group E on 9 May 1945, as Pavelić ordered the NDH forces to attempt to escape to Austria, together with a large number of civilians. The Battle of Poljana, between a mixed German and Ustaše column and a Partisan force, was the last battle of World War II on European soil. Most of those fleeing, including both Ustaše and civilians, were 