What is "baudienst"

Baudienst (from German, lit. "building service" or "construction service"), full name in German Polnischer Baudienst im Generalgouvernement (Polish Service of Construction in the General Government), was the labour battalion created by Nazi Germany in the General Government territory of occupied Poland during World War II. Baudienst was subordinate to the Reichsarbeitsdienst (RAD, lit. "Reich Labour Service").