C339 A Great Battle Had Broken out

In the year 665, April 5th, there were a total of a million people from the three sides of the Wei Shu. They arrived at Chang'an City of the Great Tang, and broke through the outer perimeter of the Chang'an City, Guo Simen, within a day.

On the 6th day of the fourth month, the Qin Dynasty of the Wei Shu broke through another five gates of the Chang'an Imperial City