From one of the many websites...
Overlord was the largest air, land, and sea operation undertaken before or since June 6, 1944. The landing included over 5,000 ships, 11,000 airplanes, and over 150,000 service men.
After years of meticulous planning and seemingly endless training, for the Allied Forces, it all came down to this: The boat ramp goes down, then jump, swim, run, and crawl to the cliffs. Many of the first young men (most not yet 20 years old) entered the surf carrying eighty pounds of equipment. They faced over 200 yards of beach before reaching the first natural feature offering any protection. Blanketed by small-arms fire and bracketed by artillery, they found themselves in hell.
[FONT=Arial, Helvetica, sans-serif]When it was over, the Allied Forces had suffered nearly 10,000 casualties; more than 4,000 were dead. Yet somehow, due to planning and preparation, and due to the valor, fidelity, and sacrifice of the Allied Forces, Fortress Europe had been breached.[/FONT]
Say thanks to a vet before they're gone. My Dad, who was on Okinawa preparing to invade Japan, told me no one acknowledged his military service until he went to the WWII memorial in DC the month after it was dedicated. What a shame. He never talked about it when I was growing up. Only recently has he told me anything about what he went through.