>>2435171According to the some military nerd of Danbooru (my number one source of moe military trivia), these guys are Italian military. Specifically from left to right: Bersagliere (assault troops), Carabiniere (M.P), Alpino (Alpine Mountain Corps).
And whether or not they would wear such a thing, I looked up Bersaglieri on Wikipedia out of curiosity and there's a picture of a modern soldier with black feathers taped to helmet. So there's that.
And since with we're on the topic of cute girl Italian military, here's more Gunslinger Girl.
