Low results on movement dice inflict disorder, so choosing to move faster risks more disorganisation.
How it works
All troops except skirmishers take 1 DP for each movement die showing 1 or 2; in woods, for each 1, 2 or 3. Because players choose how many dice to roll, extra speed trades directly against disorder, and cavalry closing to contact must roll at least three dice and accept the penalties.
All troops except skirmishers take l DP for each 1 or 2 rolled. In woods, take 1 DP for each 1, 2, or 3 rolled.