Hmh? The ENT Embassy banner makes it rather unambiguous that the name of the World Government on Earth at that time is "United Earth" (or something containing those two words so that the name can be recognizably abbreviated to United Earth for purposes of patriotic identification). The interpretations differing from that all have major problems:
1) Earth at that time is not united, and merely has a united embassy for its many players, hence the name:
- But ENT shows a single government in action basically across the globe, with a single set of Ministers and assorted agencies quoted, and without any nations ever associated with these offices and agencies.
- No sort of divided representation is evident at Vulcan, either.
- And the whole point of Crusher's speech in "Attached" was that a world in the Federation must speak with a single voice, so using a divided Earth as an example there would be inane.
2) Earth at that time is united, but under some name other than United Earth:
- Where does the "United" bit in the embassy banner come from, then? If Earth
is united, it cannot have embassies other than the united sort, so the word would be redundant and unnecessarily duplicating information as well, too.
3) Earth is united under many competing names, and United Earth only applies to the embassy but not to other bits:
- Why go byzantine when there's no real need to?
- That is, we never hear of any competing name.
Of course, Earth's world government may have changed names a dozen times after this. But that's relatively uninteresting, and only really touches upon the question of whether the UE in UESPA refers (or originally referred) to a politically united Earth (or a pious wish thereof) or merely to a unified space probe agency.
Why would Australia (or any of world government's participants) cease to exist as a independent player?
Being "world government participant" would mean exactly that, obviously. If the representative of Australia rose from his seat and told the Vulcans that his nation wants to sign this separate deal for the plomeek import rights, the UE Chairman would just extend the telescopic arm of her gavel, clobber the Aussie to silence, and say "Excuse us, Ms. Ambassador, Earth speaks with one voice, which we will use once the honored representative of one of our municipalities comes to and can cast his humble vote".
I mean, that was the whole reason Crusher brought up Earth of 2150: to contrast it against KesPrytt and its inability to vote for a single unified stance on interstellar matters.
What the world government's, or United Earth's, structure is and how much authority it has is unknown. Other than fan supposition, there is really nothing.
Except the knowledge that Earth, united, speaks with a single voice.
Unless we assume Crusher was doubly hypothetical there, positing both that Earth would diverge from the entry requirements of the UFP, and that Earth would have to mind UFP entry requirements to begin with. Perhaps Earth is famed for not meeting the current entry requirements and only having been grandfathered in? But that would be fame from outside Star Trek, as the shows themselves never suggest Earth would have multiple voices in any era of its UFP membership, or even the immediately preceding ENT era.
Timo Saloniemi