Who was involved in the invasion of Normandy?

During World War II, the invasion of Normandy was an international affair in respect to the numerous different nations represented in the fighting forces. The defenders consisted of German troops interspersed with numerous different nationalities, including Russians conscripted into the German Army. On the Allied side, Canadian, British, and American forces made up the bulk of the fighting force, yet there were also Belgians, Australians, Norwegians, Poles, Dutch, and many other nationalities involved on land, at sea, or in the air.