Mohammed bin Salman's purge of prominent figures, and his stated campaign to modernise and reform Saudi Arabia's laws and economy, have encountered both support and opposition globally and domestically.The Kingdom's potential to engage more effectively in the international community remains challenged by its political incapacity and its regional competition with Iran, including the Saudi-led war in Yemen. In this examination of Saudi Arabia's foreign policy, Gulf expert Neil Partrick and other analysts address the Kingdom's relations with established and emergent global powers, and with other important states across four continents. The book also investigates how factors from identity politics to the prospect of Iranian nuclear weapons determine Saudi foreign policy. As countries and companies battle for advantage in a changing international order, an understanding of the Kingdom is more important than ever. For students of the Middle East and international relations, this book provides indispensable insight into Saudi Arabia's engagement with its region and the world.