On December 31, 1943, Eisenhower and Montgomery first saw the plan, which proposed amphibious landings by three divisions and two-thirds of an airborne division. The two generals immediately insisted that the scale of the initial invasion be expanded to five divisions, with airborne descents by three divisions, to allow operations on a wider front. The change doubled the frontage of the invasion from to . This would allow for quicker offloading of men and materiel, make it more difficult for the Germans to respond, and speed up the capture of the port at Cherbourg. Eisenhower and Lieutenant General Omar Bradley selected for Utah the VII Corps. Major General J. Lawton Collins, who had experience with amphibious operations in the Pacific Theater of Operations (though not in the initial assaults), replaced Major General Roscoe Woodruff as commander of VII Corps.