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|allegiance= |branch= 25px United States Army |type= Transportation |role= Strategic movement, operational resupply |size= |command_structure= |garrison= |garrison_label= |nickname= "USMRR" |patron= |motto= |colors= |colors_label= |march= |mascot= |equipment= |equipment_label= |battles= |anniversaries= |decorations= |battle_honours= |battle_honours_label= |disbanded= |flying_hours= |website= |commander1= |commander1_label= |commander2= |commander2_label= |commander3= |commander3_label= |commander4= |commander4_label= |notable_commanders= Daniel McCallum |identification_symbol= |identification_symbol_label= |identification_symbol_2= |identification_symbol_2_label= |identification_symbol_3= |identification_symbol_3_label= |identification_symbol_4= |identification_symbol_4_label= |aircraft_attack= |aircraft_bomber= |aircraft_electronic= |aircraft_fighter= |aircraft_helicopter= |aircraft_helicopter_attack= |aircraft_helicopter_cargo= |aircraft_helicopter_multirole= |aircraft_helicopter_observation= |aircraft_helicopter_transport= |aircraft_helicopter_trainer= |aircraft_helicopter_utility= |aircraft_interceptor= |aircraft_patrol= |aircraft_recon= |aircraft_trainer= |aircraft_transport= |aircraft_tanker= }} The U.S. Military Railroad (USMRR) was established by the United States War Department as a separate agency to operate any rail lines seized by the government during the American Civil War. The United States Congress authorized President Abraham Lincoln to seize control of the railroads and telegraph for military use in January 1862.〔Gable, ''Railroad Generalship'', p. 13.〕 In practice, however, the USMRR restricted its authority to Southern rail lines captured in the course of the war. As a separate organization for rail transportation the USMRR is one of the predecessors of the modern United States Army Transportation Corps. ==History== The American Civil War was the first war where railroads were a significant factor in moving troops and supplying forces in the field. The United States Military Railroad organization was established to coordinate this new capability for the Union Army. The USMRR organization benefited from the appointment of experienced railroad men from the private sector. Thomas A. Scott, vice-president of the Pennsylvania Railroad served as an Assistant Secretary of War during the period 1861–1862.〔 In January 1862 Scott prepared a report on military transportation that anticipated the creation of the USMRR.〔Pickenpaugh, ''Rescue by Rail'', p.48〕 Daniel C. McCallum, former general superintendent of the New York and Erie Railroad,〔 was appointed as Military Director and Superintendent of U.S. Railroads.〔O.R. Series III, Vol. III (S# 124), p. 1126〕 Herman Haupt former chief engineer of the Pennsylvania Railroad was appointed as Chief of Construction and Transportation in the Virginia theater.〔 The departments in the USMRR tended to operate autonomously although micromanagement from the Secretary of War and overlapping authority between departments did affect their operations.〔Gable, ''Railroad Generalship'', p. 14.〕 Over time the USMRR would buy, build or capture 419 locomotives and 6,330 cars〔 beyond the rolling stock that was requisitioned from the various Northern railroads. When COL McCallum was first appointed the USMRR system consisted only of 7 miles of the Washington and Alexandria Railroad;〔Pickenpaugh, ''Rescue by Rail'', p.21〕 however, by war’s end the USMRR exercised control over a network of more than 2,000 miles〔Hodges ''Railroad Tactics'', p.8〕 of military railroads and captured Southern rail lines. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「United States Military Railroad」の詳細全文を読む スポンサード リンク
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