A near mythological event in World of Warcraft's past and cherished by a lot of players and players, is The Second War of WOTLK Gold The Shifting Sands Also known as"the battle of Ahn'Qiraj. As they faced the coming of an Old God, C'Thun, the Horde and the Alliance let their differences go and attacked the ancient town of Ahn'Qiraj to put a stop to the invading force. The counter-offensive was directed by the Overlord Varok Saurfang, a revered orc warrior who was given an entire story arc within the Battle for Azeroth expansion many years later.
The First War of The Shifting Sands took place many years before with the insectoid Qiraji generals were not able to forget their defeat. The players allied in the Cenarian Circle as well, an ancient group of druids who were long-time observers of the wastes of Silithus in order to prevent this specific action. Through World of Warcraft's Horde and Alliance cooperating combined with the elusive Bronze Dragonflight, C'Thun was defeated and destroyed and the eldritch capital city Ahn'Qiraj was eventually swallowed into the deserts sands.
Within the Eastern Kingdoms The Eastern Kingdoms however, the Horde faced an ever-present threat. The Forsaken had to contend with not only having to worry about the Alliance as well as being threatened from the Scarlet Crusade, a group of religious zealots who resent the undead of all kinds. The player assists the Forsaken to strike a variety of decisive attacks against the Crusade or any other threat to the continent. This is because the Forsaken are in a lot of isolation from the other members of the Horde and require a lot of surveillance and help.
Naxxramas was a dark necropolis that floated above the devastated city of Stratholme for years in a tribute to the destruction caused by Arthas the Scourge and his army. The Lich King was himself seated within Icecrown which is a continent away. However, his lieutenant of Kel'thuzad was charged with keeping a presence in the military over the remaining portion of Lordaeron buy WOW WOTLK Classic Gold. Then, Kel'thuzad orchestrated a series of attacks against the Horde and Alliance and forced them to be allied with Argent Dawn in order to eliminate Naxxramas and all the evils within.