(CNN)–Anniversaries are useful moments to pause and reflect. For the anniversary of D-Day — June 6, 1944 — and subsequent campaign in northern France, it is also an opportunity to look at the past in detail and ask how much of what we think we know is true and how much is well-entrenched myth. Not only is it more interesting, it is also of greater worth as we plan for the future and pray there will never be a conflict like World War II again.
1. MYTH: D-Day was predominantly an American operation
The plan for Operation Overlord — as D-Day was codenamed — was largely that of Gen. Bernard Montgomery, the land force commander. The Royal Navy had overall responsibility for Operation Neptune, the naval plan. Of the 1,213 warships involved, 200 were American and 892 were British; of the 4,126 landing craft involved, 805 were American and 3,261 were British.