It works well for zebras, who travel in herds. Their stripe pattern, similar to dazzle, makes it difficult to differentiate individuals from the group and isolate a single one. For an army in marching formation, or otherwise on the move in a group, it could serve to make it difficult to tell exactly how many soldiers are in your group. But it isn’t going to work as classic “camo”, of course, nobody is going to not see you.