 Complete the following phrase:  Following these partial capitulations, the major remaining German forces in the field other than those bottled-up on islands and fortress-ports consisted of Army Group Ostmark facing Soviet forces in eastern Austria and western Bohemia; Army Group E facing Yugoslav forces in Croatia; the remains of Army Group Vistula facing Soviet forces in Mecklenburg; and Army Group Centre facing Soviet forces in eastern Bohemia and Moravia. From 5 May, Army Group Centre was also engaged in the brutal suppression of the 