 From 1945 to 1947 , the IG Farben Building was the location of the Supreme Headquarters , Allied European Forces , and was the headquarters for the US occupation forces and Military Governor . On May 10 , 1947 , permanent orders to military personnel prohibited further reference to the building as the " IG Farben Building " , and instead called for it to be referred to as " The Headquarters Building , European Command " . The United States High Commissioner for Germany ( HICOG ) and his staff occupied the building from 1949 to 1952 . 
