A fun topic I caught on 2chan. Essentially if anime was your only “encyclopedic” source, what would you know about other countries?
Me? I’ll start with Baldo’s home. 
Italy: On the surface, Italy may seem like a democratic nation, but it’s really a shadow government conglomeration that divided between secret government departments, the Catholic Church, and the Mafia.
Italy largely funds an ineffective military and domestic police. It’s sovereignty is truly ensured by incredibly armed and magically experienced vampire/demon/witch hunting organizations within the Catholic Church (various sources), and pre-teen cybernetic assassins brainwashed to obey government handlers (Gunslinger Girl). However as a signatory member of UN Spacy, it has access to reverse engineered alien mecha (Macross/Robotech) and can construct Gundams without foreign resources (Mobile Fighter G Gundam). When advanced technological material cannot be found, Italy can still produce steam powered mecha (Sakura Taisen). Furthermore, some Italian citizens are powerful experts in martial arts (Street Fighter Alpha, King of Fighters).
Because it hosts the Catholic Church, legions of vampires and hellspawn have a particular dislike for Italy (way too many to list), other enemies include radical separatist (Gunslinger Girl), and occasional “subfleets” from alien invaders such as the Zentraedi and Gamilon empires (Macross, Space Battleship Yamato). Several small villages in Italy were destroyed by spiritual martial artists who were taking a vacation there (JoJo’s Bizarre Adventure).
Everyday Italian citizens are boring wage slaves and/or cannon fodder whenever one of the above mentioned threats appears. 
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