The boundaries between the seven constituent emirates of the United Arab Emirates form one of the most complex territorial landscapes in the Middle East that is marked simultaneously by striking fragmentation on the map and inconspicuousness on the ground. Niklas A. Haller traces how such boundaries were shaped, dismantled, disregarded, and reappeared throughout the nineteenth and twentieth centuries. He analyzes how the forces of oil and empire combined in progressively transforming the native system to the benefit of a select number of coastal rulers, ultimately bestowing upon them a maze of territorial possessions and a plethora of territorial disputes. When the seven Trucial Rulers came together in 1971 to form the UAE, the new federation only slowly succeeded in decreasing the visibility and importance of the inter-emirate boundaries as it asserted itself under Abu Dhabi’s aegis. Drawing Boundaries opens a previously unexplored lens on Emirati history that allows a more nuanced understanding of many of its key aspects: the impact and legacy of the imperial period, the formation of the UAE, and political trajectories during the federation’s early years.