D-Day for kids is a great lesson for the entire family, and it's easy to see why. The invasion began at 6 a.m., and by the end of the day, all but one million troops were dead or captured. The battle was the first in the history of the Allied Forces, and it changed the perception of what a soldier could do. If you want your child to understand the significance of D-Day, start with the history of this historic event.