Sui Dynasty and Tang Dynasty were both regimes in the Central Plains in history. In these two dynasties, wars occurred frequently. During the Tang Dynasty, there were 30 years of wars and almost 300 battles. War will generally empty a country's treasury and reduce its strength. However, in the thirty years' war of the Tang Dynasty, the stronger the Vietnam War, the stronger the country became, which was attributed to the invincible victory and the rapid economic development of the Tang Dynasty.

First, when the Tang Dynasty attacked bicycles, the war must have been fruitful. In the wars that took place in the Tang Dynasty in the past 30 years, although there were many wars, the final winner was the Tang Dynasty. The accumulated fruits of victory and the expanding territory made the Tang Dynasty gain profits in the war and finally became stronger and stronger. Moreover, the war in the Tang Dynasty did not last long, and it was a protracted war that consumed the economy very much. This is a quick war and a quick victory without excessive war consumption. However, it also won the war, making the people with economic grain and grass consume less and their income keep keeping up with the joneses. As a result, the strength of the Tang Dynasty snowballed, and the economic strength and territorial area continued to increase and accumulate, which led to the Tang Dynasty becoming more and more powerful.

Second, the industry in the Tang Dynasty was developed. In addition to direct economic benefits and territorial area, the Tang Dynasty also opened up channels for trade exchanges. Through this channel, the Tang Dynasty continued to sell the tea and porcelain of the Tang Dynasty to various places, and benefited the most from the trade because of the high quality and beautiful appearance of the goods in the Tang Dynasty. When the war in the Tang Dynasty continued there, trade went there. With the continuous development of economy, the Tang Dynasty became increasingly powerful in the Thirty Years' War. Coupled with the prevalence of the imperial examination system at that time, more talented people got official positions, accumulated talents for the economic development and the victory of the war in the Tang Dynasty, and finally created the prosperous times of the Tang Dynasty.

During the war, the Tang Dynasty continued to make profits. At that time, all countries came to Korea, and the war lasted for a short time, achieving the effect of taking attack as war, and paying attention to economic development in the war. Coupled with the superior system of the Tang Dynasty, the economy developed rapidly under the rule of Zhenguan and Yonghui. Therefore, the Tang Dynasty also became the most powerful country in the world during the war.