Noldor_returned said:
I also just thought of this, but they would have had enough warning to flee on the
ships, so there may not have been much point to any attack by
Sauron, except in gaining territory.
You know,
N_r, I’m not certain they could flee in such a fashion, at least not in great numbers. The ships they sailed to the Uttermost West were different from their usual vessels, I believe. In Letter 325, written in 1971,
Tolkien said that they were
ships specially made and hallowed for this voyage, and steered due West towards the ancient site of these lands. They only set out after sundown… [and] …followed the straight road to the true West and not the bent road of the earth’s surface. As it vanished it left the physical world. There was no return. The
Elves who took this road … had abandoned the ‘History of the world’ and could play no further part in it.
The implication is that building such a vessel took time and skill, skills not all the Elves possessed. Since
Círdan the Shipwright is supposed to have left on the last ship to Eldamar, I guess that the knowledge and skill to build such craft ended in
Middle-earth with his departure; although
Legolas constructed one in
Ithilien after the death of
Aragorn, and sailed in it with
Gimli into the West, and he must have learned how to do this somewhere or from someone – Círdan himself, perhaps?
The One Ring was unmade in III 3019, and the Three Rings lost their power to stave off the effects of Time.
Elrond and
Galadriel left Middle-earth two years later, in III 3021. I think the implication is that it must have taken at least two years to build such a ship. If it took that long to build just one of these ships, and if there were a limited number of Elves who knew how to do it, then it is unlikely that more than a few Elves could escape
Lindon in that fashion if Sauron launched an attack against that country.
Deprived of
Smaug, whom
Gandalf was convinced Sauron planned to use in an attack upon
Rivendell (and then perhaps upon Lindon?), by
Bard the Bowman after
Thorin & Co. stirred him from his long slumber under the
Lonely Mountain, I think Lindon was just too far away for Sauron to effectively assail – at least until he re-obtained his
Ruling Ring.