Right now there is an army size limitation that prevents units from entering a city when that army size has already been met (even if this is due to militia defenders!) This happens frequently while I am running any moderately sized army through the map and will often cause my units to path around multiple squares of unroaded area to reach their destination.

Please include code that temporarily bypasses the army limit to allow units to 'pass' through a city or other armies as long as they have the movement to reach the other side. Or simply allow multiple armies to be present on the same square.