"1800 - 1899" . . "aaHistoric sites azEast (U.S.)" . . "Sezessionskrieg (1861-1865)" . . "États-Unis" . . "Fortifications États confédérés d'Amérique." . . "États-Unis (est)" . . "HISTORY / United States / Civil War Period (1850-1877)" . . "Historic sites." . . "Guerra di secessione. 1861-1865 - 1861-1864 - Fronte orientale." . . "Südstaaten (USA)" . . "aaFortification, Field axHistory ay19th century." . . "Fortifications États-Unis États-Unis (est) 19e siècle." . . "AaConfederate States of America abArmy of Northern Virginia axHistory." . . "aaFortification azEast (U.S.) axHistory ay19th century." . . . . "Fortification." . . "AaUnited States abArmy of the Potomac axHistory." . . "HISTORY." . . "Confederate States of America" . . "USA." . . "USA" . "Befestigung." . . "United States" . . . . . "Electronic books"@en . . . . . . . . . . . . "Tracing the campaigns of the armies of the Potomac and Northern Virginia from 1861 to 1864, this text considers the role of field fortifications in the defense of cities, river crossings and in battles. Blending technical construction with operational history, the role earthworks played in the success or failure of field armies is tackled."@en . . "Field armies and fortifications in the civil war : the eastern campaigns, 1861-1864" . . . . . . . "Field armies & fortifications in the Civil War : the Eastern campaigns, 1861-1864" . . . . . . "Field armies & fortifications in the Civil War : the Eastern campaigns, 1861 - 1864" . . "Military history"@en . "Military history" . . . . "Field armies and fortifications in the Civil War the Eastern campaigns, 1861-1864"@en . . . . . . . . . . "Field armies & fortifications in the Civil War : the eastern campaigns : 1861-1864" . . . . . . . "History" . "History"@en . . "Field armies and fortifications in the Civil War : the Eastern campaigns, 1861-1864" . . . . . . . . "Field armies and fortifications in the Civil War" . . . "East (U.S.)" . . "Fortification, Field." . .