United States of Gamerica Capitalism 4 Major financial foundations Frontier Spirits
Empire of Great Eiles Largest Nation of the world Colonization projects Save the Queen
The Deukuits Third Empire. Genius Idol Fuhrer Miraculous recovery Fancism. (Yes, FANcism, not facism, as these germans are all fans of the idol fuhrer)
United Humanity of Soviet Planned Reproduction Cometee Chiarwoman girl Sharism (pun, communism is 共産主義 but this is spelled 共有主義, not sharing of wealth but just "sharing" period.)
Japanese Empire Shibazaki-sama The emperor and Kamikaze Universe all Japanification project
The nation names are puns. England is called "Igirisu" in Japanese, derived from Portuguese "Ingl?s". Japanese official kanji spelling is 英国 "Eikoku". Mix the two, and you get "Eirisu". Likewise, Japanese pronunciation of Germany is Doitsu, derived from Deutsch or Duits. Japanese official kanji spelling is 独国. 独 alone reads "Doku". Mix the two, and you get "Dokutsu".
I bet the communism pun is something to do with the sex mate-sharing and "planned reproduction" system. After all, this IS a eroge. They changed the names for all but Japan and Soviet, but didn't change the spelling in the English writings. For the lulz.