In the event that the orcs attacked Azeroth during the First War and dealt a decisive and devastating attack on humanity (one of World of Warcraft's major moments), the Alliance of Lordaeron was formed as a way to deter the threat of the Orcs WOTLK Gold
. The high elves, who were in debt to humans for their aid to fight the trolls that threatened them before, readily joined forces with the earlier Alliance. This would prove to be their salvation from the trolls, for it wasn't long before the orcs attacked their homeland of Quel'thalas. This Second War enacted a heavy toll on all who participated, but ultimately the Alliance won, and the high elves came back to their homes to treat their wounds.
As is played out fully in the events of the popular RTS game Warcraft 3. Arthas Menethil - possibly the franchise's most infamous and impactful character - was betrayed by his own people and pledged his life to the Scourge. His aim was to revive the powerful necromancer, Kel'thuzad. However, to accomplish this , he needed the kind of power only located in the high-elf city of Silvermoon. In particular, he sought the Sunwell that contained infinite magical energy that served as the beating heart of the high elf culture.
The Fallen Prince was accompanied by his army of undead, with its ranks bolstered by the multitude of bodies of Lordearon's citizens, and marched towards his prize. Many attempted to stop him, including the well-known Warcraft characters Sylvanas Windrunner however, she, like all person who fought back, was shot in a brutal manner and then thrown into soulless slavery. The high elves called out to aid, but no aid came from their allies. Most people in the Alliance was either too far away to assist or were dead. Arthas enacted nothing short of massacre, taking out 9-10% of the elves' population in a single, brutal sweep. Additionally, he stained the Sunwell beyond recognition, destroying the elves' main source of magic as well as their hopes.
After all this destruction and the loss of his father the King, the Prince Kael'thas Sunstrider had no choice but scrape the last of his family and seek assistance elsewhere. The effects from losing his Sunwell were taking a huge toll on cheap WOTLK Classic Gold his people too and mana withdrawals could make them all insane with craving for magic. Kael'thas had renamed his people blood elves, also known as sin'dorei, in the wake of the devastation. The survivors of Warcraft's Scourge invasion of Quel'thalas set off towards what was left of Lordaeron however Arthas had reduced most of it to rubble already and there were few left to gather the fragments.