Gallente - Alpha
Amarr - Beta
Caldari - Gamma
Minmatar - Delta

It's somewhat warped though, since the Caldari (as usual for gammas) are portrayed as die-hard capitalists, the Amarr asa ruthless religious empire, the Gallente as democratic easygoing guys, and the Minmatar as the rebels who have to gain back their freedom from the Amarr. Gallente have french influence, Amarr german (I think), Caldari Japanese and Minmatar Nordic (as per the game info).