Early in the war industrialist Walter Rathenau held senior posts in the Raw Materials Department of the War Ministry, while becoming chairman of AEG upon his father's death in 1915. Rathenau played the key role in convincing the War Ministry to set up the War Raw Materials Department (Kriegsrohstoffabteilung - 'KRA'); he was in charge of it from August 1914 to March 1915 and established the basic policies and procedures. His senior staff were on loan from industry. KRA focused on raw materials threatened by the British blockade, as well as supplies from occupied Belgium and France. It set prices and regulated the distribution to vital war industries. It began the development of ersatz raw materials. KRA suffered many inefficiencies caused by the complexity and selfishness KRA encountered from commerce, industry, and the government.