Key Facts
- Start of bombardment
- 21 August 1914
- Last fort surrendered
- 25 August 1914
- Belgian defending unit
- 4th Division, Belgian Army
- Duration of siege
- ~5 days of active bombardment
- German army engaged
- German 2nd Army
Strategic Narrative Overview
The German 2nd Army arrived in strength on 20 August 1914 and began a systematic artillery bombardment the following day, employing super-heavy siege guns and four Austrian batteries. The concrete casing of several forts proved defective, and conventional heavy artillery also destroyed some positions. The French Fifth Army, which had planned a counter-attack to relieve Namur, was driven back at the concurrent Battle of Charleroi on 21 August, leaving only one French regiment to reach the city.
01 / The Origins
In August 1914, Germany invaded Belgium as part of the Schlieffen Plan, seeking a rapid route into France. Belgium had ringed its key cities, including Namur, with modern fortresses intended to slow any invasion force until allied guarantors could mobilise. The Germans had already besieged Liège and brought the lessons of that operation — including super-heavy Austrian siege artillery — to bear on Namur's Fortified Position, defended by the Belgian 4th Division.
03 / The Outcome
With relief cut off after the French defeat at Charleroi, survivors of the Belgian 4th Division withdrew southward on 23 August to join the Fifth Army near Saint-Gérard. The last Namur forts surrendered on 25 August 1914. The Belgian troops eventually made their way to Antwerp, rejoining the Belgian field army during its own subsequent siege. German losses during the reduction of Namur were minimal compared to Liège.
Belligerents & Mobilization Analysis
Side A
1 belligerent
Side B
2 belligerents
Kinetic Engagement Axis
Scroll horizontally to view full axis. Events plotted relatively.