The Tibetan flag, adorned with the celestial Snow Lion, flies above the cities of the Tarim Basin once again. Over the 40 years of Trisong Detsen's reign, he took the Tibetan Empire from its lowest to its highest point. The signs were clear from the earliest days, as the Tang Empire descended into chaos with the An Lushan rebellion, the Tsenpo sent his armies to capture the capital of China itself, Chang'an.
