Djam served as head of the Iranian Imperial Army Corps from 1969 to 1971. He was commissioned into the Cavalry in 1934 and had trained in the
Prussian Staff College for the
Wehrmacht in 1936–37 and served for a while as a mercenary officer in the Royalist force of Spain in 1938. He left the army because of professional conflicts with
Mohammad Reza Pahlavi and retired in 1973. After resignation from the army he became Iranian ambassador to
Spain for a few years up to 1978. Then he moved to
London. To the last government led by
Shahpour Bakhtiar before revolution he was proposed to be defense minister, but according to his interview later on due to lack of authority he did not accept the position. He believed that the declaration of impartiality by army core at the last day of revolution was a betrayal. Following the revolution he did not come back to the country but during the
Iran–Iraq War he was supporting the Iranian army. ==Personal life==