The Water War: Angkor's Canals and the Rise of Ayutthaya

In this episode, Lucas and Luna dig into a fresh angle on Angkor's collapse: the quiet but relentless competition over water infrastructure. While earlier episodes focused on megadrought, trade shifts, and disease, here we trace how the Khmer hydraulic network — the barays and canals that irrigated the rice fields and supported the capital's population — became a strategic vulnerability. We follow the story from the construction of the West Baray in the 11th century to the final abandonment of Angkor in the 1430s, showing how the city's dependence on a centralized water system made it brittle when rainfall patterns shifted and trade routes moved toward the Chao Phraya. We also spotlight the role of the Tonle Sap's seasonal flood pulse, the efforts of Jayavarman VII to expand the system, and the practical choices of Ponhea Yat, who relocated the capital to Phnom Penh partly to stay close to the Mekong's reliable water and trade access. Along the way, we consider the engineering limits of Khmer reservoirs, the maintenance burden of siltation, and how the rise of Ayutthaya under Ramathibodi I exploited Angkor's logistical straits. This episode ties together climate, infrastructure, and geopolitics to explain why the greatest city of Southeast Asia ran out of water and options. #Angkor #KhmerEmpire #WaterInfrastructure #Canals #Baray #TonleSap #Mekong #ChaoPhraya #Ayutthaya #RamathibodiI #PonheaYat #JayavarmanVII #SoutheastAsia #WaterManagement #ClimateHistory #Collapse #HistoryPodcast #FexingoHistory Keep every episode free: buymeacoffee.com/fexingo