Re: Gotta admit, Earth Starfleet Command's not very diverse
United Earth sounds fairly clear to me: good, centralized, progressive rule with a moderately federal structure below. It cannot be too federal as you cannot get rid of hunger, war on so on via letting every nation or group playing its own game.
The illegal we do immediately; the unconstitutional takes a little longer. - former US Secretary of State and unconvicted war criminal Henry Kissinger