History
The largest seaborne invasion in history was launched on a one-day break in the weather
On June 6, 1944, Allied forces landed roughly 156,000 troops across five Normandy beaches in a single day, backed by nearly 7,000 vessels. Commanders delayed the assault 24 hours waiting for a break in a storm; a small window of calm weather, spotted by meteorologist Group Captain James Stagg, is what let D-Day go ahead at all.