Principality of Dacia

The Dakia Grand Duchy, also called Dacia in certain versions as a direct reference to the Latin name that was given to ancient Romania/Bessarabia, is a nation that was behind the times in terms of military prowess. The military is on the verge of late-19th century strategy and machinery. They attempted to attack the Empire without any air support, but ended up getting wiped off the map by Tanya Degurechaff's flight wing.

Trivia

 * On the maps that show up in the background of the anime, the country's name shows up as "Grosherzogtum Dacia" in a highly stylized font.