In western Europe, by the end of 1940, Germany had confiscated135,000 tons of steel, 20,000 tons of lead, 9,500 tons of zinc, 9,000 tons of nickel and 9,000 tons of aluminum in the occupied areas of France and Belgium. Only the looted French cars could be equipped with 88 German divisions. Not only that, Germany even plundered precious cultural relics and art treasures from art galleries, museums, libraries and private collections there. According to a secret German official report, "By July of 1944, cultural relics from western Europe had been loaded on 137 railway wagons, with 4 174 boxes and 2 1903 pieces, including 10890 paintings." In addition, Germany also integrated the economies of the Netherlands, Belgium, France and Denmark, made full use of their factories and enterprises, and served Germany's war economy through compulsory processing and ordering.