[Footnote 4-26: Memo, H. E. Dunkelberger, M-1 Sec, Div of Plans and Policies, for Asst CMC, 5 Jul 44, sub: Steward's Branch Personnel, AO-660, MC files.] The admonition to employ black marines to the maximum extent practical in defense battalions was based on the mobilization planners' belief that each of these battalions, with its varied artillery, infantry, and armor units, would provide close to a thousand black marines with varied assignments in a self-contained, segregated unit. But the realities of the Pacific war and the draft quickly rendered these plans obsolete. As the United States gained the ascendancy, the need for defense battalions rapidly declined, just as the need for special logistical units to move supplies in the forward areas increased. The corps had originally depended on its replacement battalions to move the mountains of supply involved in amphibious assaults, but the constant flow of replacements to battlefield units and the need for men with special logistical skill had led in the middle of the war to the organization of pioneer battalions. To supplement the work of these shore party units and to absorb the rapidly growing number of black draftees, the Division of Plans and Policies eventually created fifty-one separate depot companies and twelve separate ammunition companies manned by Negroes. The majority of these new units served in base and service depots, handling ammunition and hauling supplies, but a significant number of them also served as part of the shore parties attached to the divisional assault units. These units often worked under enemy fire and on occasion joined in the battle as they moved supplies, evacuated the wounded, and secured the operation's supply dumps.[4-27] Nearly 8,000 men, about 40 percent of the corps' black enlistment, served in this sometimes hazardous combat support duty. The experience of these depot and ammunition companies provided the Marine Corps with an interesting irony. In contrast to Negroes in the other services, black marines trained for combat were never so used. Those trained for the humdrum labor tasks, however, found themselves in the thick of the fighting on Saipan, Peleliu, Iwo Jima, and elsewhere, suffering combat casualties and winning combat citations for their units. [Footnote 4-27: Shaw and Donnelly, _Blacks in the Marine Corps_, pp. 29-46. See also, HQMC Div of Public Information, "The Negro Marine, 1942-1945," Ref Br, Hist Div, HQMC.]