D-Day (Smithsonian Edition) is a re-designed, simplified version of the original 'classic' Avalon Hill D-Day- which had two versions as well: D-Day (1961) and D-Day (1971). It is one of Avalon Hill's game in their Smithsonian Series.Two scenarios, one historical and one 'what if', are covered by basic and optional rules. A complete historical background and list of weapons, tanks, and aircraft is included. - BoardGameGeek