@ubernaut I meant as a national colour. The French were also not blue any longer in WW2. Obviously, the Russians were not red either: that is the international colour of Communism made into a national colour. The actual colour of the Italian infantry, though, was actually mostly grey with a hint of green: it was called "grigioverde", which means "grey-green".
https://www.militariainroma.com/en/product/italian-rei-ww2-m39-shirt/

@Cernel actually the current set up is more historically accurate the US basically had an official color (olive drab) for everything but naval units in ww2. so troop uniforms vehicles and aircraft

https://www.chasetactical.com/intel/od-green-color-history



this color is basically what we r using now for US in most maps.

italy on the other hand had a mix grey green or light grey green for troops and vehicles, ash grey with red and white stripes for naval vessels and kind of all over the map for aircraft.



Having to choose, it makes more sense for the Italians to be green than the Americans. Green is the traditional color of Italy, sort of like blue for France.

@TonyMez You can try an AI image editor, instructing it to change green to blue.