D-Day - A Second Front: In 1942, Winston Churchill and Franklin Roosevelt issued a statement that the western allies would work as quickly as possible to open a second front to relieve pressure on the Soviets. Though united in this goal, issues soon arose with the British who favored a thrust north from the Mediterranean, through Italy and into southern Germany. Against this, the Americans advocated a cross-Channel assault which would move through Western Europe along the shortest route to Germany. As American strength grew, they made it clear that this was the only approach they would support. Read more here