History has forgotten Lieutenant General Sir Frederick Morgan, yet without Morgan there would have been no D-Day. In the development and execute of the operational plan that was to become OVERLORD, Lieutenant General Morgan faced numerous challenges, the most pressing being the inability of American and British political and military senior leaders to agree to a common strategy for the defeat of Germany. Morgan also faced challenges with a lack of resources to support what was to become the primary mission of the Allies, the return to the Continent. Finally, Morgan dealt with personalities, such as Dwight D. Eisenhower and Bernard L. Montgomery, who assumed responsibility for OVERLORD and in the case of Montgomery summarily dismissed all of Morgan’s eﬀorts. Despite all these challenges, Morgan produced a plan for OVERLORD that was fundamentally followed on June 6, 1944.