While the specter of separatist uprisings haunted the Tang court for well over a century during the Middle and Late Tang periods, the exploration of military garrisons transcends a mere examination of these revolts. This book ventures into deeper realms, scrutinizing not only the uprisings but also the formation of these garrisons, the circumstances sustaining their existence, their types, the distinctive features of the insurrections they bred, and the intricate political and financial dynamics between these garrisons and the central government. Through a meticulous reconstruction of the everyday realities shaping these military entities, the book unveils previously overlooked or understudied facets, providing a comprehensive and nuanced comprehension of these garrisons during the Tang Dynasty.