What was the process of the first large-scale unification war in primitive society of China?

In primitive society, the first large-scale unified war broke out in the history of China, which was the battle of Han Quan between Yan and Huang. This war is very different from the unified war in feudal society. Let me give you a detailed introduction to this war. At that time, Shennong was in decline, and tribes invaded each other, among which Huangdi and Yan Di tribes developed and became the strongest tribes. If Emperor Yan and Emperor Huang want to enter the Central Plains, there will inevitably be a contest between two tribes. After some preliminary exploration, Yan Di tribe and Huangdi tribe finally chose the land of Hanquan for a decisive battle, which is called the Battle of Hanquan in history. Because the two tribes participating in the war have considerable strength and the scale is quite spectacular. After the war, the Yellow Emperor led "Bear, Wolf and Leopard"? "Tiger" and "Tiger" launched an attack on Emperor Yan's army, and these six armies held their respective objects of worship as flags. Emperor Yan also led six armies to battle fiercely with the troops of the Yellow Emperor. At that time, there were no swords and guns, but stones and sticks were used to fight. The two sides fought fiercely for several days, each winning or losing. The two sides were deadlocked, and Emperor Yan launched a fire attack when the Yellow Emperor was unguarded, making smoke billowing outside Xuanyuan. The situation was very unfavorable to the Huangdi tribe, and Emperor Yan was very proud. At this time, Ying Long, the general of the Yellow Emperor, put out the fire with water. The Yellow Emperor immediately led the army to launch a counterattack against Emperor Yan, and caught him off guard. The Yellow Emperor drove Emperor Yan to Hanquan Valley, surrounded him there and told his soldiers not to hurt his life. The Yellow Emperor erected seven flags in Hanquan Valley and unfolded the seven-star flag. Emperor Yan faced the seven-star flag, and his wisdom was exhausted. The Yellow Emperor drove Yan Di to an isolated mountain. He admired Yan Di's medical and agricultural techniques, but he didn't kill them all. On the one hand, let the soldiers practice the Seven Flags of the Stars in front of Emperor Yan, which greatly puzzled Emperor Yan. At the same time, send someone up from behind the lonely mountain, sneak into Emperor Yan's camp and capture him alive. The biggest difference between this large-scale unified war and other large-scale unified wars is that both monarchs can die well. The battle of Hanquan finally ended with the victory of the Yellow Emperor, and the world was unified. Finally, under the careful management of Emperor Yanhuang, people's lives are getting better and better, and national strength is booming!