B/ON-2160 Bunker Langemark-Poelkappele Lpk 1 is a World War I-era military bunker located in West Flanders, Belgium. Situated near the village of Langemark, this concrete fortification was part of the extensive defensive network established along the Western Front during the Great War. The bunker's strategic position in the flat, low-lying terrain of Flanders made it a key component in the region's defensive infrastructure.
Constructed from reinforced concrete, the bunker features thick walls designed to withstand artillery fire and provide shelter for troops. Its location near the Poelkappele area suggests it was integrated into the broader trench and bunker systems that characterized the static warfare of the Ypres Salient. Today, the structure stands as a silent witness to the intense battles that raged in this region during World War I.
The bunker is of interest to military historians and urban explorers studying the evolution of defensive architecture and the impact of trench warfare on the Belgian landscape. Its preservation offers insight into the engineering challenges faced by both Allied and German forces in constructing durable fortifications in the waterlogged soil of Flanders.