The inside of the deep dug-out Bremen-Redoubt (left) and a view over a covered alley of the Atlantik Wall (WW2) which was examined in Zeebrugge.

Both World Wars left substantial archaeological traces in Western Flanders. The Ypres Salient (WW1) and the Yser Front (WW1) are of course the most famous features, but there were also defensive lines along the Belgian coast during both wars (WW2: the Atlantik Wall). Less known but at least as well preserved is the Hollandstellung, which is a WW1 defensive line along the Belgian-Dutch border. All these “battlefields” were the subject of earlier research carried out by the I.A.P. Parts of Belgian Concrete shelters along the Yser Front have been localised and mapped. A deep dugout was discovered during the excavations of a mediaeval abbey in Zonnebeke. Several other examples in the Ypres Salient were drawn in co-operation with the Diggers, an association of amateur archaeologists. On the industrial estate of Boesinghe (Boezinge, Ypres) several trenches and a deep dugout were excavated. Several human remains were recovered during this campaign. Very recently the I.A.P. also excavated the remains of two parts of the WW2 Atlantikwall (Knokke-Heist and Zeebrugge).