In the Civil War, several battles were fought nearby including the First Battle of Manassas, the Second Battle of Manassas, and the Battle of Chantilly. During the winter of 1861 and early 1862 the town was significantly fortified by the Confederacy and served as a supply depot for both sides at various points in the war, and is famous for being the site of the construction of the first railroad ever built exclusively for military use, the Centreville Military Railroad. Centreville was of significant strategic value due to its proximity to several important roads, while its position atop a high ridge provided a commanding view of the surrounding area.