Today is D-Day. On June 6, 1944 the Invasion of Normandy began.
It is a time to remember and give thanks to the people who fought for us. There is no doubt that without their sacrifice and contribution the world would be a different place than it is today.
If you are familiar with Saving Private Ryan then you have seen Spielberg's dramatization of the moment.
Here are a few links and some videos that you can use to learn more about it.