Festung

Defenses of Pearl Harbor & Oahu 1907-50

Glen Williford, Terrance McGovern

The Mannerheim Line, 1920-39: Finnish fortifications of the Winter War

Bair Irincheev ; illustrated by Brian Delf

Fortress America: the forts that defended America, 1600 to the present

J.E. Kaufmann and H.W. Kaufmann ; illustrated by Tomasz Idzikowski.

The Vauban Fortifications of France (Fortress)

Paddy Griffith

The grand slave emporium: Cape Coast Castle and the British slave trade

William St Clair

Cities and citadels in Turkey: from the iron age to the Seljuks

edited by Scott Redford and Nina Ergin

Fortifications of the Western Front 1914-18 (Fortress)

Paddy Griffith

Focus on Fortifications: New Research on Fortifications in the Ancient Mediterranean and the Near East

Rune Frederiksen, Silke Muth, Mike Schnelle, Peter Schneider

Nordmesopotamische Ruinenstätten

Gernot Wiessner.

Fortress 9: English Civil War Fortifications

Peter Harrington