Italian-built fighter Fiat CR 42s of Swedish Air Force ahead of one, perhaps the first, rock shelter at Royal Göta Air Wing, F 9 Säve completed in 1942, near Göteborg. Still existing, this rock shelter’s complex is today a museum of Aeroseum Foundation. Year of the photo 1943. Victor Sierra. 

CR.42 in rock shelter

In May 1940, besides 270 light tanks the Belgian army could also count with 8 Renault ACG-1s which equipped one Escadron d'Auto-Blindees (Armored Car Squadron). Photo date unknown.

Belgian ACG-1

A greek soldier in a trench in Pindos 1941