The years that followed the Pandarian Landfall had been harsh and barbaric. The landfall had been a disaster, with thousands lost for both the Horde and Alliance. Pandaria became an “Unwinnable War” with neither side gaining much in way of land or resources, but losing thousands of lives to the brutal war.
Lacking the manpower that had been lost in Pandaria, the Horde and Alliance began to research new weapons of war. These new weapons of mass destruction began to be stockpiled, with both sides of the conflict trying to create the larger and more lethal arsenal. New weapons and improved versions of old ones began to show, from Forsaken Blight, Mana Bombs, Goblin Azsharite Warheads, and Gnomish Radiation Weapons.
Ironically, this short period of time would see very few actual conflicts. Neither side was willing to make the first move if it meant mutually assured destruction. Many thought this alone was a deterrent enough, but Garrosh Hellscream was not a man easily deterred. Tired of inactivity on every front, the Warchief authorized a massive raid on Alliance allied Jinyu territory in Pandaria. Varian, ordered his forces to seize Domination point from the Horde.
Hellscream would not have another five year stalemate, forced to fight over Pandaria. The Horde had tried to seize Pandaria the old way before, Hellscream would not be so foolish a second time. Garrosh ordered the bombardment of The Karasang Wilds, a fleet of Horde Zeppelins carrying the new weapons devastated every Alliance holding there.
Varian was disgusted by the Horde’s actions, luckily the exchange of super weapons had only taken place in Pandaria. Unfortunately, he didn’t think that would last. With most of the Alliance Pandaria army destroyed at Karasang, he’d have to hit the Horde in a different way.. Varian ordered the destruction of The Shrine of Two Moons within the Vale of Eternal Blossoms, its central location in Pandaria made it ideal to stockpile the Horde’s super weapons, Varian would see this threat eliminated.
A fleet of Alliance gunships made their way to the vale, managing to sneak past Horde Zeppelin patrols. The Gunships rained Radiation bombs unto the Temple, what followed would be forever cemented in history..
The bombs not only decimated the temple, but ignited the Horde Stockpile there, a massive explosion of Radiation, Arcane Energy, and Blight rocked the vale, not even the Gunships above escaped, they were disintegrated before they even reached the ground.
The massive output of the combined explosion affected the very land itself, the Vale’s magical waters fueled the destruction, expanding it. The desolation didn’t end there, a massive cloud of latent magical energy, blight, and radiation formed, the cloud swept across Pandaria in a matter of months, killing every living thing there.
Neither side was prepared, the massive storm of dark power grew larger daily, the very mists of Pandaria had been corrupted, and would now stretch across all of Azeroth. The Horde however, had no intentions of wasting around on a dying planet. Hellscream headed a massive exodus across the veiled sea, to the Blasted lands. While the Alliance was busy working on a way to halt the cloud’s growth, the Horde landed on the the Red Reaches of the blasted lands and seized the Dark Portal, sending both civilians and warriors through the portal, in attempt to seize Outland to escape Azeroth’s demise.
When word reached Varian from Nethergarde keep of the Horde’s aggression in the Blasted Lands, it was nearly too late. The cloud of destruction had consumed the cape Stranglethorn, and it would soon reach Stormwind. Left with no choice, and running
out of time, it was decided that the Alliance too, would abandon Azeroth.
Brave Druids, Shamans, and Priests slowed the clouds eventual expansion, allowing refugees from all over Azeroth to reach the Eastern Kingdoms and make their way to the Blasted Lands. Seizing the Dark Portal had proven easy for Alliance forces, as most of the Horde forces had already crossed through the Portal. Even the Stair of destiny on the other side had proven easy enough to capture, it seemed the Horde had no intention of keeping watch over Azeroth.
Countless refugees from all over Azeroth filtered through the portal, even races loosely affiliated with the Alliance (And some which had been hitherto hostile). However, at the last second, a small fleet of Horde Zeppelins blighted several survivors, and mana bombed the portal itself, thus separating Outland and Azeroth once again.