Which formation best provides coverage against a flank attack?

The wedge formation is optimal for providing coverage against a flank attack due to its structure that allows for a broad front while maintaining flexibility and the ability to respond quickly to threats from the sides. In a wedge formation, the unit is arranged in a pointed shape, forming a protective point that can quickly pivot to face an attack from either flank. This design not only enhances the unit’s ability to maneuver but also allows for effective communication and coordination among its members.

Additionally, the wedge provides a natural spread of forces that can simultaneously cover the front while being prepared to react to threats, making it difficult for an enemy to exploit a flank without being engaged by the unit. The inherent advantages of the wedge formation make it particularly suitable in dynamic combat environments where flank attacks may occur.