In theory, such a shield formation cannot attack at all.
This isn't infantry combat. In the case of infantry combat, when the Central Plains heavy armored shield infantry form a shield formation, there will be another part of fierce soldiers cooperating, piercing and thrusting with long spears through the gaps in the shield formation, attacking and defending with great ferocity.
The shield formation pins down people, and the killing blow is the four-sided shield formation trapping the opponent, then through the gaps, hundreds of long spears madly thrust, and when the shields retreat, only a ground covered with fresh blood and a heap of shredded flesh remain.
But this kind of steady and fierce battle formation only appears in infantry combat. In cavalry, without cooperation from attackers, the shield formation is just like a stone lump.
Just as Mei Cai thought this.
The thousand heavy shield cavalry reached behind their waists and drew a strange mechanism.
