What is a phalanx?

Square array is a formation used in ancient military operations, which arranges the participating troops (cars, infantry, cavalry, etc.). ) according to operational requirements. Generally, according to the establishment of the ancient army, based on the martial arts or teams, the composition includes, left refusal (moment) and right refusal (moment), forming a square or rectangle. Depending on the scale of operation, it can be large or small, and the large square can reach more than 10 thousand people; According to different combat situations, there are more or less contents, some points and some combinations. "Minutes are like power cuts, and minutes are like dark clouds." The speed of convergence and divergence is natural and changeable.