Cavalry Retreat Before Combat. Cavalry retreating before combat may not retreat through enemy ZOCs, and may not engage in Off March attacks. The Ruszki and Grand Duke Nicholas HQs may never be moved adjacent to an enemy unit. Both these HQs cannot move farther away than six hexes from the eastern map edge. Supply is determined for each side only during its friendly supply phase.
Armoured trains count as battalions for stacking purposes.
There are three bridges across the Vistula at the start of the game, and three ferry crossings. Bridges and ferries are identical, except when specified otherwise. Ferries, but not bridges, may be rebuilt. Supply may be traced across bridges and ferries. Turns when the Russians may not cross the Vistula apply to both bridges and ferries.