Who will use the sand table for operation?

Ma Yuan's "Many a Millet Makes a Mountain" has played an important role in analyzing the military situation. This is the first time in the history of China to use military sand table, which is a pioneering work in the history of war. Using the sand table in the war can make the situation of the enemy and the enemy clear at a glance and provide the coach with intuitive decision-making information.

According to topographic maps, aerial photographs or field topography, we call it sand table, which is made of sand, foam and other materials in a certain proportion. It can visually display the site topography and the engineering facilities of the position, and is a common tool for the army to command operations.