This is bunker MN 21 of the PFL 1, the 1st defense line of the 'Position Fortifiée de Liège 1'.
MN refers to the sector 'Les Margarins-Neufchâteau' where it is the 21st of a total of 31 bunkers.
The bunker is located on a private plot and serves as a shelter for chickens. The owner of the plot did not allow photographs to be taken at the bunker itself. Therefore, only a side shot from a meadow confirms the position of the bunker.
As general information it can be mentioned that this bunker like most bunkers of the PFL are made of reinforced concrete and that they were built in the early 30s. The walls and ceiling are 1.30 m thick. They had to withstand shelling with 150mm shells. Only the walls at the rear are slightly less thick, because in principle they were not exposed to enemy fire.
When the bunkers lost their strategic value for the defense of Belgium after the war, the metal of the hatches and doors was sold as scrap metal. Also, most of the plots on which they stood were sold, so that many bunkers now stand on private plots. Like bunker MN 21, for example.
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