That was not a very bright statement.
War was declared against Hitler in December 1941. The ground invasion on the beaches of Normandy was two and a half years later on June 6 1944.
You can accuse our army of doing nothing but you would be wrong. During that time there was intense manufacturing, training and logistical movement of stuff.
At present, you do not know, don’t have a clue, about the war being fought. The main reason is...... the preparation for the assault is secret. You do not have the need to know.
You should read the article I linked. It lists all the fronts the war is being fought on.
It's also worth pointing out that only about a year later we unleashed the most powerful force known to man in the form of a weapon capable of decimating our enemies ten times over.
It was only by virtue of our benevolence and generosity that we didn't destroy them completely but instead accepted their unconditional surrender. We are a kind-hearted people but are not to be trifled with.