Were the Elves allies to Gondor?

[Olmer]

[EDIT by Eärniel]This discussion is split off the thread Free will versus destiny as it deserved its own thread. [/EDIT]

Originally Posted by Forkbeard

And I would also say that given Sauron's plan, the Elves staying and protecting their own lands was exactly right: Sauron divided his forces and fought on too many fronts instead of the crushing blow on Gondor first, then pick off the others piece by piece.
FB

Considering that Sauron was not such an idiot to fight in too many places at once, and that Dol Guldur was not a major stronghold and had been keeping over there a couple of garrisons at most, not the army, it had to be a good reason to send the Dol Guldur's orcs on self - destruction mission.

The matter is that after Mordor’s intrusion in Osgiliath the existence of Gondor has been hanging out by the thread. As an allies Thranduil and even so Celeborn was REQUIRED to send a military help to Denethor.
If they somehow could avoid a participations in the fights before the inflammation of the military conflict , then in the crucial moment their presence in the war was MANDATORY.The Elves lords were in the need of an extremely convincing reason not to get in this massacre.
Sauron very well understand this, he doesn’t need the Elves on the Pelennor field also. And he gives to Lorien what it silently begging - an imitation of the storm.
But you won’t send kamikazes from Mordor where every single fighter has been accounted for ,and Dol-Guldul is just right for such cook up.
And when orc’s catapults began to strike mallorns on the Golden wood’s border , the Firstborn breathed with relieve:” Sorry Denethor,we would like to help, but we are ourselves in tight spot, fending off three attacks in two weeks ”…