As long as it kept good order, such a formation could roll right over enemy infantry but it did have weaknesses. The men were all moving forward facing in a single direction and could not turn quickly or efficiently to protect the vulnerable flanks or rear of the formation. Nor could they maintain cohesion over uneven ground, as the Scots discovered to their cost at the Battle of Flodden. The huge block of men carrying such unwieldy spears could be difficult to maneuver in any way other than straightforward movement.