The Dutch Staff College used to run a wargame prior to WW2. The plan was to attack Arnhem from the direction of Nijmegen. Anyone who used the "causeway" between the two cities was deemed to have failed, as it was considered too much of a bottleneck and military convoys would be easy targets.
The Dutch Army element in the planning stage of Op Market Garden made the point about their staff exercise, and were duly ignored!
The rest, as they say, is history.