Apparently I didn't know much about D-Day, because I learned a lot.
I learned...
Dunkirk was the heroic evacuation of troops from France in 1940, and D Day was their heroic return to liberate France.
Churchill and Roosevelt started planning d day a year and a half before it started. They threw everything they had at that plan, and if it didn't work they had no backup.
There were lots of double agents feeding false information to Hitler, but he didn't find out about any of them. One of them, Garbo, was awarded Hitler's medal of honor!
This is when the inflatable tank photos were super useful; Germany thought the invasion would be somewhere else.
D Day involved 5 separate beaches in Normandy: 2 each for British and American forces and one for Canadians.
There were 20k paratroopers going in at night. But they got fired on, jumped early, 20% of the paratroopers died, and America has never done a nighttime parachute landing again.
Boot camp then and now includes crawling through a trench while ACTUAL BULLETS fly over your head. I thought that was a joke in monuments men.
D Day happened during a terrible storm that ruined so many plans. But Eisenhower wasn't sure if it'd be riskier to go ahead or to wait. Bombers couldn't see and not one hit their target; most were too far inland and hit empty fields. Only 2 of the 30 swimming tanks ever made it to shore, and they were too late to help. The soldiers were freezing and seasick.
The Omaha beach landing was a disaster. An hour in, the allies had hardly fired a single shot and were just getting pummeled from the Germans in bunkers at the top of the cliffs: they'd fire machine guns at the ramp of each boat, killing everyone as soon as they stepped out. Most leaders died, there was almost no cover for those who made it to shore, and the tide started coming in. And yet somehow they gained ground, after scaling cliffs and getting help from destroyers.