(A/N: Alright let's get a few things straight here so we can avoid confusions. When you see the words 'Crossovers/Universes', that means they all exist in the same universe. Well except the Supernatural and Kaiserreich Universes. They're still separate but they're allies whose universes are connected. Anyway, as for the other series/franchises, the parts where I wrote 'Crossovers/Universes', everything under that section exists all in one universe. Like the first one where there are multiple series that exist in one universe. You understand once I make the bio and arsenal for the Axis Imperium.)

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[Crossovers/Universes #1]

Wolfenstein

HOI4 - The New Order: Last Days of Europe

The Man in the High Castle

DC Earth-X (Arrowverse/Freedom Fighters: The Ray)

The Boys

Summary: The defeat of the allies and the fall of the free nations of the world would lead the Axis Imperium as the dominant hyperpower that now controls the world. Under their brutal rule and tyranny, they committed acts of genocide and horror the likes of which the world had never seen before. Even with resistance groups like the Freedom Fighters fighting desperately to stop the Axis Imperium, it wasn't enough, especially when against the New Reichsmen. When their researchers and scientists were able to successfully build and opens portals to different dimensions throughout the multiverse, the Axis Leadership organized massive armies and began invading multiple worlds to expand their sphere of influence, along with obtaining new resources and slaves for their empire.

1 year after invading three worlds, they decimated any and all opposing groups who still tried to resist the Axis.  With massive resources at hand and a new army that seemed unlimited, the Axis Imperium had decided to invade a fourth world in order to once again expand their empire. That would be a massive mistake as when they were invading another world, they had just awakened and angered two gigantic Titans who now wanted revenge. This is where the Axis Imperium had signed their death warrant as now they're forced to fight against literal forces of the Supernatural, including literal Angels of Heaven and Demons of Hell. Worst of all, they're actions had pissed off Neo Angelo, the new God of Heaven and the Supreme Ruler of all Creation.

[Crossovers/Universes #2]

Resistance: Fall of Man

Summary: Earth is ravaged due to the invasion of an alien species called the Chimera. Though humanity succeeded in eventually defeating them and freeing their Earth from the alien threat, they now have bigger and more dangerous problems to deal with due to the arrival of the Axis Imperium. Luckily, they were prepared for their arrival thanks to the appearance of Raymond 'Ray' Terrill AKA the Ray. After ending up on their Earth, remnant forces of the US Government/Military found him and nursed him back to health. This is when Ray told them about the Earth he came from and the dangers of the Axis Imperium. He gave proof by showing holographic images and videos of his world thanks to Red Tornado's Neural Cortex. With this information, the American Resistance hid deep underground as they began construction of a portal that'll lead them to another world where they can regroup and live to fight another day. After succeeding, they ironically end up on the planet Anaxes where they meet the UN and ICC just hours after the invasion.

[Crossovers/Universes #3]

Code Geass

Summary: During the SAZ event, Princess Euphemia attempts to give the Japanese people their rights back and tries to make them be seen as human beings again. Furthermore, she also tries to make peace with Lelouch/Zero and have them work together to make Japan a better place. Unfortunately, she is betrayed by the Britannian military who are given orders to execute her and the Japanese people under orders by her own father, Charles zi Britannia. Soon a violent massacre and battle occurs as Lelouch escapes with Euphemia, together with other renegade Britannians as the Black Knights come in to save their people and battle against the loyalist Britannian military forces. As the fighting rages Lelouch gives a speech about his plan to creating the United States of Japan. However, they're soon interrupted by an invasion fleet from the Greater Japanese Bakufu Confederation.

Despite efforts trying to repel the invasion, the Axis Japanese prove to be too much, and it gets worse when Emperor Masaru intervenes and confronts the Black Knights himself. Despite firing everything they had on him, they're unable to land a scratch on him due to powerful energy shields. In response, the Axis Japanese Emperor unleashes his Fire Bending (Avatar) which nearly kills all of the Black Knights (save for a few) and burning the entire city to the ground with just one attack. Soon the other great nations of the world are invaded, and any mounted resistance is crushed beneath an iron boot. But just 1 year later, hope comes in the form of the UN and ICC as they liberate their world from Axis control.

[Crossovers/Universes #4]

RWBY

Summary: The Vytal Festival is about to begin, and Team RWBY is ready to kick butt and take names. Everything was going normally well so far until strange occurrences and disappearances occur, leading to unexplained events that'll lead to the worst event in Remnant's history. Due to a sabotage in the tournament and a mysterious voice speaking out, the Kingdom of Vale is soon invaded by the Greater Germanic Imperial Commissariat. Though Team RWBY and their allies/friends desperately try to fight back and save their home, the fighting becomes too much, especially when the Axis German unleash their superpowered soldiers, along with artificial beasts like Vampires and Werewolves. Massacred by the millions, Remnant soon fell to the Axis Imperium who gained control over the entire planet. On the other hand, Team RWBY, along with their surviving friends and allies, had gone into hiding, trying hard to survive against their interdimensional invaders while at the same time mourning for the losses of their friends and loved ones. But just a year later after the Axis Imperium invaded the multiverse, help soon arrives in the form of the UN and ICC who invaded Remnant to liberate their world from tyranny and oppression.

[Crossovers/Universes #4]

Supernatural (TV Series)

Kaiserreich: Legacy of the Weltkrieg

Summary: On the recently and newly colonized world of Anaxes, citizens of both the United Nations and the Imperial Confederation Club enjoy a time of peace as they settle into their new homes. Unfortunately, that peace is shattered due to the appearance of an unknown fleet of warships appearing in the star system and invaded the planet. Anaxes soon became a battlefield as the Axis Imperium wished to claim the world and the rest of this universe for their own. Led by Scarlett Hitler von Stein, leader of the SS State of Burgundy, she leads both Axis German and Axis Japanese forces on the planet as they massacre everyone on sight. After UN and ICC reinforcements arrived and defeated the Axis invasion force, thus driving them into retreat, they soon learn about the existence of the Axis Imperium and their plans for multiversal domination.

Unwilling to let the unproved invasion go unanswered and knowing the consequences that'll happen if they allow the Axis Imperium run rampant across creation, both Neo Angelo and Friedrich IV have ordered an immediate declaration of war, resulting in both the UN and ICC to prepare their armies and launch a military invasion against the Axis Imperium. It's now a 'War of the Multiverse' as the UN/ICC travel to different worlds that have been invaded by the Axis while at the same time encountering new allies and facing new enemies along the way. At the same time, it's up to a new generation of heroes to help lead the charge, the same way their parents did during the wars and battles before the events of the 'Final Conflict'.

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(A/N: Alright so in this case, there's 'technically' gonna be four Crossovers/Universes involved. Nothing else this is all just gonna be made into one book for the real story. It's thanks to these four Wattpad Authors that help both me and WWIIFanHistory make this crossover multiverse story possible.

XwarCommander1230

DewElr

410Jackass

godzillahalofan / Paryew

(A/N: Though really, it's mainly based on XwarCommander1230 'War of the Multiverse' Story. Sorry not trying to copy or anything. Just maybe make it similar. It'll have a lot less Crossovers/Universes compared to his story. Sorry if it may sound like a bummer, but that's how the way it is. Anyway, this is the arsenal book where you see the military forces of each faction while the other book is the main story itself. Expect to see a mix of both Sci-Fi/Futuristic and Supernatural/Fantasy elements involved. See you all next time.)