1918 French Military Camp Group Photo Postcard - World War I

This postcard from 1918 depicts a group of French soldiers, part of a World War I military camp. The men are posing in front of a series of tents, dressed in a mix of casual and military attire, suggesting a moment of rest or informal gathering at the camp. 
The reverse side of the postcard is addressed to Mlle. Bertha Flaman in Belgium and features a handwritten message in French. The note references "souvenirs des 23 jours" (memories of the 23 days) and mentions "Monsieur Gustave" and "Argentan," likely giving personal context to the sender's time spent in this camp. The card is postmarked and bears a 10-centime red French stamp.
Reverse Text (French):
Souvenir des 23 jours. Bonjour à la petite famille. Monsieur Gustave à Cacagne vers Argentan (Orne).
English Translation:
Memories of the 23 days. Hello to the little family. Mr. Gustave in Cacagne near Argentan (Orne).
Size: 14 cm x 9 cm
Please take a look at the pictures as part of the description.
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