"A Red Army officer, who said the German Army was being constantly harassed behind its lines by partizan activities and guerilla warfare, told me details of a number of recent incidents in White Russia. He said almost every village in German-occupied territory had supplied one or more groups of partizans who lived in the woods and used every opportunity to waylay detachments of infantry patrols and tanks."
Erskine Caldwell's novel about the Soviet partisan war from Amazon: All Night Long