I don't think there was a stereo in ancient times, but as long as there was an order on it, everyone below could know it. It should be a level-by-level message, just like in school, the teacher will tell the monitor, the monitor will tell the team leader, and the team leader is passing it on to the team members. In the same way.

China is a civilized country with a history of 5,000 years. After countless dynasties and rulers, dynasties changed frequently. If a ruler can make the country stable and the people live and work in peace and contentment, this rule may continue. If you encounter a fatuous and incompetent monarch, there is a great chance of war and there are relatively many rebels. In fact, I regard war as the continuous progress of civilization and the inevitable result of the evolution of ancient history. When the old rule was overthrown and a new dynasty was established, there was a new civilization. Please click to enter a picture description.

In ancient times, the combat team was relatively large. Before the battle, there was a swearing-in meeting. Generally speaking, generals stand on towers or high places, and then there are people around to convey orders. When the general says a word, the people next to him will repeat it. Soldiers who send messages usually choose louder ones. Generally, they will shout slogans to boost morale, make soldiers have the determination to win, and the soldiers are also impassioned.

Of course, there will also be notices and official documents posted to clarify the causes of the war and the reward mechanism, so that soldiers have the motivation to participate in the war and make contributions. There are also lieutenants, pioneers and military advisers under the general, who will give orders and eventually inform all soldiers. The army attaches great importance to military discipline, whispering in the army at will, or directly killing with sticks. So no one dares to slack off.