But the battle over racial quotas was only beginning. The question of the number of Negroes in the Navy was only part of the much broader considerations and conflicts over manpower policy that finally led the President, on 5 December 1942, to direct the discontinuance in all services of volunteer enlistment of men between the ages of eighteen and thirty-eight.[3-43] Beginning in February 1943 all men in this age group would be obtained through Selective Service. The order also placed Selective Service under the War Manpower Commission. [Footnote 3-43: Executive Order 9279, 5 Dec 42.] The Navy issued its first call for inductees from Selective (p. 070) Service in February 1943, adopting the Army's policy of placing its requisition on a racial basis and specifying the number of whites and blacks needed for the Navy, Marine Corps, and Coast Guard. The Bureau of Naval Personnel planned to continue its old monthly quota of about 1,200 Negroes for general service and 1,500 for the Messman's Branch. Secretary Knox explained to the President that it would be impossible for the Navy to take more Negroes without resorting to mixed crews in the fleet, which, Knox reminded Roosevelt, was a policy "contrary to the President's program." The President agreed with Knox and told him so to advise Maj. Gen. Lewis B. Hershey, Director of Selective Service.[3-44] [Footnote 3-44: Memo, SecNav for Rear Adm Randall Jacobs, 5 Feb 43, 54-1-22, GenRecsNav.] The problem of drafting men by race was a major concern of the Bureau of Selective Service and its parent organization, the War Manpower Commission. At a time when a general shortage of manpower was developing and industry was beginning to feel the effects of the draft, Negroes still made up only 6 percent of the armed forces, a little over half their percentage of the population, and almost all of these were in the Army. The chairman of the War Manpower Commission, Paul V. McNutt, explained to Secretary Knox as he had to Secretary Stimson that the practice of placing separate calls for white and black registrants could not be justified. Not only were there serious social and legal implications in the existing draft practices, he pointed out, but the Selective Service Act itself prohibited racial discrimination. It was necessary, therefore, to draft men by order number and not by color.[3-45] [Footnote 3-45: Ltr, Paul McNutt to SecNav, 17 Feb 43, WMC Gen files, NARS.] On top of this blow, the Navy came under fire from another quarter. The President was evidently still thinking about Negroes in the Navy. He wrote to the secretary on 22 February: