These forces , especially the experienced mountain troops , engaged in large-scale counter-guerrilla operations in the area of Epirus . Their operations were successful in that they reduced the threat of guerrilla attacks on the occupation forces , but their often brutal conduct and mass reprisals policy resulted in massacres of civilians such as that of Kommeno on August 16 , the Massacre of Distomo , or the " Massacre of Kalavryta " in December . In anticipation of the Italian collapse , the German command structure throughout the Balkans was reorganized : Army Group E under Löhr took over in Greece , overseeing both German forces and the Italian 11th Army
Massacre of Kalavryta
Massacre of Kalavryta
Military history of Greece during World War II