D-Day American Unit Cards is designed to assist players and to help the transition of their built armies under previous editions to version 4. These unit cards are also with all the statistics and rules a player needs.
The D-Day landings were the biggest undertaking of the US Army to that point in the war. The US Army was huge, but most of its divisions were totally inexperienced. Only a handful of divisions had taken part in the fighting in North Africa, and most of those were still engaged in Italy. To offset this inexperience, they had raised elite assault troops, such as paratroopers and rangers, reorganised their regular troops for assault landings, and brought experienced veteran divisions back from the Mediterranean. This gives an American commander a wide choice of forces, even though their equipment was standardised to maximise the benefits of American-style mass production.