Sorry guys but the argument "The nightelves have some other problems" is not valid anymore.
Sure it WAS like this at the beginning, cenarius dead, nordrassil sacrificed, teldrassil corupted, malfurion missing, ancients sleeping and so on.
But now, EVERYTHING is solved: Malfurion is back, Nordrassil is growing again (there are even rumors that Nightelves got their immortality back now) and Ragnaros got killed, Deathwing and the twilight Hammer got wiped out of Hyjal, Teldrassil is cleansed, Cenarion is back from the dead with the anciants awakened.
The Nightelves do not have other duties anymore beside protecting THEIR PEOPLE and their forests.
The Orcs chopped down 2/3 of Ashenvale, killed an entire School of Druids, tried to trap and kill Tyrande and STILL Malfurion is sitting on his ass, now where all the greater problems are solved, Cenarion once called to protect the nightelves against the orcs is doing nothig, too.
But then again, even the sentinel army is standing in Feralas, skrimishing with some unimportent Nagas inside a stretegic unimportent forest.
Guys it is not classic anymore, if the Horde attacs Stormwind, and the nightelves doing nothing, you can call them neutral, but since the horde is heavyly attacking nightelf territories, and the elves are doin nithing, this isn´t being neutral, this is not even realistic, this is beyond bad writing.
Seriously, with that all in mind, the Nightelves shoudl be one of the mightiest military forced in WoW. They have an entire Army of Warriors who trained for thousands of years, 2 race specific gods, a half-god and several other dietys, they have the most powerful caster as their faction leader and 2 world trees and the well of eternity.
I realy wish Tyrande would have chosen Illidan in the first place, he would not sit in Darnassus while his people are slaughtered.