Oman and Iran share close diplomatic, economic, and military ties. According to Kenneth Katzman of the Congressional Research Service, "Oman has a tradition of cooperation with Iran dating back to the Shah of Iran's regime and Oman has always been less alarmed by the perceived threat from Iran than have the other Gulf states." Unlike the majority of its Gulf neighbors, Oman managed to uphold diplomatic relations with both sides during the Iran–Iraq War from 1980–1988 and strongly supported UN Security Council resolutions to end the conflict. Secret cease-fire talks between the two adversaries were held in Muscat during the war, and although an agreement was never reached during these talks, they did reduce distrust on both sides. Moreover, after the war, Oman mediated talks to restore diplomatic ties between Iran and Saudi Arabia and Iran and the United Kingdom.