Da Qin: Start by Preventing Qin Shihuang from Unifying the Six Kingdoms

Just Zhao Guo, can that be done? The monarch of Zhao State is fatuous and favors treacherous ministers. The Qin State had a strong military, with six generations of wise kings, and the First Emperor was the overlord of his generation. Although a series of projects labored for the people, they benefited our future generations. As for the Great Wall, when Emperor Wu of the Han Dynasty attacked the Xiongnu, the Great Wall played a necessary military role. The Ling Canal and the Zheng Guo Canal are even known as the "Pearls of Ancient Water Conservancy Architecture in the World" and played a major role in the economy, military, and agriculture. You still stopped Qin Shihuang. If you hadn't had the advanced ideas and knowledge of later generations, you would have been nothing.