In regional level, Iran-Iraq War had a great impact on neighboring states' foreign policy approach, especially on Gulf Arab States. These states adopted a new approach in their relations with Iran and Iraq considering the ideological and revolutionary threat of Iran. After Iraqi invasion against Iran, Gulf Arab states affected by Nationalism movement, sported Iraq extensively. Their policy toward Iran and Iraq changed in different phases of the war. The writer this essay has tried to explain these states' relations with Iran and Iraq during the war with regard to different affecting factors.