One of the most important days during World War II was , it became a “day” so important it changed a continent. Don't be mistaken by the word it did not all happens in just one day but many days. was just a code name for the day that Operation Overload started. is very well known for the beginning of the end of the war in Europe and Hitler's rule over most of the ruined continent of Europe. Many say that if it were not for Europe would have definitely fell to Hitler. There are a few terms used when people talk about . One of them ....