The Casemate d'Esch is a pre-World War II fortified position near the German frontier in extreme northeastern France.

As a unit of the Fortified Sector of Haguenau, the casemate was part of French defenses during the Battle of France, but saw no combat in 1940.

Esch was built in 1931 by the Commission d'Organisation des Régions Fortifiées (CORF), which was responsible for the major fortifications of the Maginot Line.

[1] The casemate line formed a barrier across the Alsace Plain between the Vosges Mountains, whose last outlier was at Schoenenbourg, and the Rhine River.

The position was armed with two twin heavy machine guns, type JM and, two 47mm anti-tank gun/JM combinations, one of each firing laterally.

[5] On 19/20 June, German forces of the 246th Infantry Division made a concentrated attack on the casemate line around Hoffen, which failed to penetrate the fortifications.

The casemates around Hatten, were first attacked on 24 June from the south, by the 215th Infantry Division which had circled back after passing to the rear of the Maginot Line.