 Punished laborers were imprisoned in Liban working camp in Kraków ("Liban Quarry").Baudienst was to build and maintain infrastructure (construction and repair of roads and canals), and aid with agricultural tasks.The overall objective was not to build infrastructure for the Poles, but for the Germans (with the aim of increasing West-East transport capacity in preparation for German invasion of the Soviet Union, and later, to improve the efficiency of German logistics).