[Iarhen]

How do you know that it was through the 3 elven rings that Celebrimbor and Co. knew about Sauron's plans? Im interested...

And I agree... It was through the One Ring that Sauron was able to come back, even though his body was destroyed. It was through the One Ring that he acquired great servants and more armies (the Nazgul, etc). It was through the One Ring that Sauron's enemies diminished... Possibly, even the death of Elendil and the failing of Gil-Galad was in his plans... So that he could cover all lands in a Second Darkness once he could take form and recover the Ring...

As the previous poster said, it was a way of making his power bigger... With a handicap, of course...

I bet Sauron knew of hte possibility that some lunatic wanted to destroy the Ring, but he knew that the One Ring coudl not be destroyed but in Orodruin... the core of Saurons, and the One Ring's, power... A place where all other wills and powers were subdued... I remember reading somewhere in this forum that no one would have been able to throw the ring into the Fire (not even the elves) because it was way too powerful...

But, again, Sauron did not count on the intervention of Eru... So, in the end, Eru did intervene through Gollum (and a slippery floor) and saved the world of men (much like the last intervention of the Valar vs Morgoth)...