Worksheet and answers to the outstanding The Armchair Historian 18-minute animated documentary, Modern Trench Warfare. The Iran-Iraq War. The video is an engaging examination of causes, events and consequences of the war. It covers military operations, weaponry and international alliances that enabled the war to continue for too many years, leaving countries and people broken. The mounting numbers of dead and injured are too large to be fathomable. An excellent resource for the teaching of National Studies: Option H: Iran 1945-1989 - NSW Modern History Syllabus for the Australian Curriculum.