Merriam Press World War II History No. 19. First eBook Edition, 2015. Expanded edition of the 1951 Department of the Army Pamphlet 20-240, with photos and additional text. This study on the problems of rear area security is based on German experiences during the Russian campaign. Particularly striking examples have been selected which show most clearly the type of disturbances created by the Russians, the German countermeasures taken against them, and the lessons learned from experience. Contents: (1) German Plans and Preparations (2) The Front Behind the Front (3) Interference by Isolated Russian Units (4) German Attempts to Restore the Local Economy (5) The Rise of the Partisan Front (6) Attacks on Rail Communications (7) Disruptions of Highway Traffic (8) Attacks on Supply Depots (9) Conclusions. 17 photos, 2 maps.