The Fort de Tancrémont (French pronunciation: [fɔʁ də tɑ̃kʁemɔ̃]) is a Belgian fortification located about 3 kilometres (1.9 mi) south of Pepinster.

[1] The Fort de Tancrémont was a development of the original Belgian fortifications designed by General Henri Alexis Brialmont before World War I, a relatively compact ensemble of gun turrets and observation posts disposed on a central massif of reinforced concrete, surrounded by a defended ditch.

This was in contrast with French thinking for the contemporary Maginot Line fortifications, which were based on the dispersed fort palmé concept, with no clearly defined perimeter, a lesson learned from the experiences of French and Belgian forts in World War I.

[2] The new Belgian forts, while more conservative in design than the French ouvrages, included several new features as a result of World War I experience.

Ventilation was greatly improved, magazines were deeply buried and protected, and sanitary facilities and general living arrangements for the troops were given careful attention.

[4] The Fort de Tancrémont comprised five combat blocks on a ridge between Pepinster and Theux.

was located above the main living accommodations and was the combat entrance, armed with machine guns, while O was an emergency exit.

[5] Unlike its three sisters, Tancrémont lacked a rolling drawbridge entrance, a result of its late completion.

[7] The main 75mm guns were Bofors Model 1934, made at the Fonderie Royale des Canons (FRC).

He had been conscripted into the Belgian Army from his civilian employment as an electrician at the Houget-Duesberg-Bodson textile works and was retained at the fort after the surrender to maintain its electrical systems.