Chang'an City claimed that it would never fall and has indeed never fallen. To be more exact, it had never experienced a single test since the Tang Empire was founded.
No one ever doubted this, because Chang'an city was the last and most powerful source of confidence for the Tangs. As long as it stood on the southern plains of the Sishui River, the Tangs would be able to keep a smile on their faces.
A siege was also not considered a threat. As long as Chang'an was there, the counties of the Tang Empire, especially those close to the capital would strongly resist against it. The resistance of the Tang and their determination to fight to the end would persist to the last moment.
The Tangs were groomed to think that Chang'an would never fall. They thought that this was a fact that did not require any reasoning. Not many knew that it was because of the God-stunning Array.