Department of the Pacific had six subordinate military districts during the Civil War: On July 27, 1865 the Military Division of the Pacific was created under Major General Henry W. Halleck, replacing the Department of the Pacific, consisting of the Department of the Columbia that now consisted of the state of Oregon and the territories of Washington and Idaho and the expanded Department of California that now consisted of the states of California and Nevada and the Territory of New Mexico and Territory of Arizona. On 30 May 1898, Gen. Wesley Merritt established in San Francisco the Headquarters, US Expeditionary Forces and Department of
Seaboard Air Line Railroad direct passage to Baltimore, Philadelphia and New York. The system's premier train, however, was the "Atlanta Special", running in daily service between Atlanta and Washington, using the Atlantic Coast Line's tracks from Weldon to Richmond, and the tracks of the Richmond, Fredericksburg and Potomac from Richmond to Washington. Between 1898 and 1900, Seaboard affiliate Richmond, Petersburg and Carolina completed the laying of track from Norlina to Richmond, thereby providing an all-Seaboard route from Atlanta to Richmond. As important as the route to the major railroad hub of Atlanta was, access to Florida resorts and markets would be even more important