Lord Lothar rallied the remnants of Azerothâ€™s armies after their defeat at Stormwind Keep, and then launched a massive exodus across the sea to the northern kingdom of Lordaeron. Convinced that the Horde would overcome all of humanity if left unchecked, the leaders of the seven human nations met and agreed to unite in what would become known as the Alliance of Lordaeron. For the first time in nearly three thousand years, the disparate nations of Arathor were once again united under a common banner. Appointed as Supreme Commander of theAllianceforces, Lord Lothar prepared his armies for the coming of the Horde.
Aided by his lieutenants, Uther the Lightbringer, Admiral Daelin Proudmoore, and Turalyon, Lothar was able to convince Lordaeronâ€™s demi-human races of the impending threat as well. TheAlliancesucceeded in gaining the support of the stoic dwarves of Ironforge and a small number of high elves of Quelâ€™Thalas. The elves, led at that time by Anasterian Sunstrider, were largely uninterested in the coming conflict. However, they were duty-bound to aid Lothar because he was the last descendent of the Arathi bloodline, which had aided the elves in ages past. The Horde, now led by Warchief Doomhammer, brought in ogres from its homeworld of Draenor and conscripted the disenfranchised Amani forest trolls into its fold. Setting out on a massive campaign to overrun the dwarfkingdomofKhaz Modanand the southern reaches of Lordaeron, the Horde effortlessly decimated all opposition.
The epic battles of the Second War ranged from large-scale naval skirmishes to massive aerial dogfights. Somehow the Horde had unearthed a powerful artifact known as the Demon Soul and used it to enslave the ancient Dragonqueen, Alexstrasza. Threatening to destroy her precious eggs, the Horde forced Alexstrasza to send her grown children to war. The noble red dragons were forced to fight for the Horde, and fight they did. The war raged across the continents of Khaz Modan, Lordaeron, and Azeroth itself. As part of its northern campaign, the Horde succeeded in burning down the borderlands of Quelâ€™Thalas, thereby ensuring the elvesâ€™ final commitment to the Allianceâ€™s cause. The greater cities and townships of Lordaeron were razed and devastated by the conflict.