Random historical tidbit:

The wagensburg was based in its organization on that of the Hussites. An Ordinance of 1480 speaks of two lines each of 50 wagons, a line either side of 100 each, and two outer lines of 300. Colored signal flags were used, largely of red and white, four of them bearing the symbols of a cannon, crossbow, halberd, or pike as easy recognition signs. An executioner and gallows accompanied the army; robbery brought the loss of a hand, while deceit concerning the enemy might mean being clubbed through the wagon lines.