I've certainly never found it to imply otherwise; where do you, specifically? As ever, I would point out that the notion of two separate Starfleets rather than one whose role evolves and expands as time goes on is pure fanon, originally put forth around the time of ENT's premiere to "explain" the perceived "continuity error" of Starfleet preexisting the Federation.I've never interpreted the events in Enterprise as implying that Earth's Starfleet is the very same organisation as UFP''s Starfleet
Indeed. As @TwoJakes says above and as I meant very much to imply, the UFP would not exist if not for Earth and humans, not in the form we know it anyway. So when people ask "why does everything seem so Earth/human-centric?" I find it slightly bemusing. It's obvious. (Now, whether this is truly a realistic portrayal or not, I think fairly immaterial, as it's as much a conceit of the fiction as warp drive. But for a rough analogy, look at how much the European empires like Britain and Spain—and their American successors—influenced the global scene for centuries.)because Earth seems to have been instrumental in the founding of the UFP
Who says they would? As I see it, there are more or less two basic paths that the transition in Starfleet's role might take, although the details of which and over how long a period of time can only be speculated since there are significant gaps in what we were actually shown.Enterprise depicts most races to have their own military (e.g. Andorians, Vulcans), at least some of which ostensibly have ships more advanced and powerful than Earth's Starfleet ships.
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Why would eg. the Vulcans relinquish their military and exploratory tasks to a fleet of (in their eyes) outdated ships, when they could supply superior ships for that task themselves?
(1) Member worlds initially maintained their own fleets for their own purposes until gradually phasing them out as Starfleet was built up to snuff and became equipped to effectively take over those roles.
(2) Member worlds' fleets were simply folded into Starfleet wholesale; i.e., all those advanced Vulcan and Andorian ships themselves became Starfleet ships.
A combination of these two might see a scenario in which Starfleet initially assumes a coordinating role among the various members' fleets before ultimately and eventually superceding and/or absorbing them entirely.
Remember that Starfleet was not initially a military organization at all—not even for Earth—but only an exploratory one. The military role came about as it became needed, with things like bringing the M.A.C.O.S. on board and beefing up the weaponry and such being early examples. By the time we get to the Dominion War, Starfleet seems exclusively to be the UFP's military force, at least on the frontier. (Yet, is there any particular reason we can't think major member worlds mightn't even then continue to have limited fleets of their own for local defense, etc.?) But there's a long time between the one and the other in which that transition could have taken place organically and not necessarily all at once. Things could still be in a state of transition to some degree in Kirk's time!
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