Since the 1979 revolution, the ruling establishment of Iran has developed and articulated a defense strategy reflective of the country's Iran-Iraq war experience and its international isolation. Its asymmetrical warfare doctrine, use of irregular forces in military campaigns, deployment of ballistic missiles, use of fast naval vessels to harass and confuse adversaries, and finally development of a sophisticated cyber warfare capability, are all features of this unique defense strategy. Based on a wide range of primary sources in Persian, Arabic and English, Gawdat Bahgat and Anoushiravan Ehteshami offer a detailed and authoritative analysis of Iran's defense strategy. Additionally, this book provides a comparative analysis of the Islamic Republic's capabilities in relation to Israel and Saudi Arabia, its main regional adversaries. Framing Tehran's threat perceptions following the revolution within a wider historical context, this book will facilitate further analytical reflections on the country's changing role in the region, and its relations further afield, with the United States, Europe, Russia and China.