Böcker i Fortress-serien

This work takes a look at the formidable U-boat bases and bunkers built on the French coast in Norway and Germany, and also focuses on the huge "Valentin" factory complex at Bremen, which manufactured the new type XXI electro-boats.

Hadrian's Wall is the most important monument built by the Romans in Britain. This work details the design development and construction of the wall and covers the everyday lives of those who manned it as well as the assaults it withstood.

This is the first title in a series that takes a detailed look at fortifications and defensive systems throughout history. The prolonged and bloody fighting for control of the Japanese occupied Pacific islands in World War II is a key point in the history of 20th century warfare.