Treatise on Armament Technology, Volume 76
Section on Chariots and Elephants: Tactics and Formations I
Page 11

Diagram of the Grass Drill

original: "Cǎojiào Tú" (草教圖). The term "Grass Drill" refers to a maneuver or training exercise likely conducted in open fields or hunting grounds. This diagram illustrates the "Cǎojiào" (Grass Drill) formation from the Wubizhi. The arrangement utilizes circles to denote unit positions, with specific command and specialized troops labeled in the center and along the perimeter.

Left Victorious Hunting Cavalry　　Right Victorious Hunting Cavalry

Cavalry Force　Great General　Cavalry Force

The Great General (Dà Jiāngjūn) acts as the central command for this formation.

Lieutenant General　Lieutenant General

original: "Piàn Jiāngjūn" (偏將軍), subordinate commanders stationed to support the central authority.

Left One　　　　　Right One

Left Two　　　　　Right Two

Left Three　　　　　Right Three

Left Four　　　　　Right Four

Left Five　　　　　Right Five

These numbered units represent the flanking divisions of the formation, organized symmetrically to ensure balance and responsiveness during the drill.

Cavalry Commander　　　　　Cavalry Commander