The had concrete bunkers with MG's that can shoot at 700 bpm with mortars while the U.S. also the Germans where on a incline on a huge moutain/hill so the Germans had a big advantage's but they still lose cause they did not wake up hilter from his sleep if they did they would of won of Omaha beach.
That is a pretty broad thing. There is a changing of the guard at Arlington national cemetery and other memorial places across the country. They also do it in England at some of there important and historical sites. It usually refers to a event that happens when the Soldiers who have been stationed at one of these sights are rotated out in a very ceremonial manner. There are plenty of examples on youtube that you can look up.
a group of boyz and a band