Description – Redoubt IV of the Veiligheidsomwalling is a small redoubt located between Fort III (Borsbeek) to the north and Fort IV Mortsel to the southwest. Redoubt V was constructed a little more to the south. A railway ran between the two redoubts.

Construction & Armament – This concrete redoubt was constructed between 1910 and 1912. It is considered to be standard redoubt featuring artillery and secured the interval between two adjacent forts. The redoubt featured a wet moat but has only one floor. It is smaller than the design of the Hoofdweerstandstelling redoubt. One cupola was built in front of the redoubt: it had one 75mm gun installed. Two 75mm guns secured the intervals.

Armament – Veiligheidsomwalling Redoubt

• 3x 75mm fortress gun

Current condition – Redoubt IV was completed when the Great War broke out in 1914. It is not known if it participated in any defensive actions. The redoubt was demolished and a trailer site has taken its place.

Sources – Own elaboration; Gils, R.