In the run up to the outbreak of war, the large companies engaged in tank production did not have space set aside for expanding their production lines. In consequence, unlike allied manufacturers, German tank manufacturers never came to a point where they were stock piling and storing excess finished products. Though these companies did expand with the increased demand of the ongoing war, it was not until the assignment of Albert Speer as Minister of Armaments that true efforts were made to bring mass production techniques to the German tank production industry.