How did the sand table appear?

Sand table is a model made of sand, chess and other materials according to topographic map or field topography. In the military, it is often used to study terrain, enemy situation, battle plan, organize and coordinate actions and implement training. Sand table has a long history in China. According to "The Biography of Ma Yuan in the Later Han Dynasty", in 32 AD, Emperor Guangwu of Han Dynasty conquered Xiao Wei in west Gansu and called Ma Yuan, a famous soldier, to discuss the strategy of marching. Ma Yuan is very familiar with the geography of Longxi, so he made a model similar to the field terrain with rice and made a detailed tactical analysis. After seeing it, Emperor Guangwu Liu Xiu said happily: "The enemy is in my eyes!" This is the earliest sand table operation.

18 1 1 year, von Leswitz, the civilian military adviser to King Friedrich Wilhelm Ⅲ of Prussia, made a beautiful battlefield model with clay, showing roads, rivers, villages and Woods in colors, and using small porcelain blocks to represent troops and weapons, which were displayed in Potsdam Palace for military games. Later, Leswitz's son used sand tables and maps to represent the terrain, used timers to represent the configuration of troops and weapons, and made strategic planning according to actual combat methods. This "war game" is the modern sand table operation.

/kloc-at the end of 0/9 and the beginning of 1920s, the sand table was mainly used for military training, and it was put into use only after World War I..