Bertrix

The Semois (; Simwès in Walloon, often under elided form Smwès; Semoy, Sesbach in German, Setzbaach in Luxembourgish of Arlon; and known as the Semoy in France) is a river flowing from the Ardennes uplands of Belgium and France towards the Meuse, of which it is a right tributary.

Bertrix (; ) is a municipality of Wallonia located in the province of Luxembourg, Belgium.

military airbase

Cugnon () is a village of Wallonia and a district of the municipality of Bertrix, located in the province of Luxembourg, Belgium.