[tialaramex]

D'oh. I swear I had the year correct (it's supposed to be a few days before the invasion because the Germans wouldn't be able to respond instantly) in an earlier draft. Thanks for the correction.

And I did mean Neptune, the Overlord plans would have remained valuable for several weeks as they included details of the immediate objectives in Normandy and how resupply would be done, Neptune was just the invasion and related actions.