Although King Khalid did not have an extensive interest in foreign affairs as much as King Faisal had, his reign witnessed many important international events, including the Iranian Revolution, the assassination of Anwar Sadat and the Soviet invasion of Afghanistan, all of which had significant effects for Saudi Arabia. In addition, the Saudi government led by King Khalid was much more active in improving the relations of Saudi Arabia with neighbouring states in contrast to the reign of Faisal. Kamal Adham was King Khalid's key counsellor on foreign policy during his reign from 1975 to 1982.