Ahriman's POV

As me and Luna watched, the entire Lunar Army slowly shuffled into the Parade Grounds. When the flow of soldiers ceased, Luna began her speech.

"My loyal servants, it is with great pleasure that I welcome you to Faal Lohiim do Vulon, Capital of the Lunar Republic. We have gathered you here today because of a proposal by my trusted ally, Chief Librarian Ahrimam!" She yelled into the crowd, and the batponies cheered. When the cheering died down, Luna motioned for me to speak. I nodded.

"Fellow soldiers of the Lunar Republic! As you may know, for the past three years we have done nothing but defend our borders and raid passing Supply carts. Well, that stops today. For I have proposed an invasion into the Solar Empire's territory, and the target of said invasion is the city of Manehattan." Most of the soldiers quieted down after that. Regardless, I continued onwards.

"I know what your thinking, that we cannot fight through The Empire's territory, but your wrong! The only Eason we haven't done so already is because we have been stretched across the border, defending from assault after assault. That is why we have gathered all 60 Companies of the Former Lunar Guard together, as this will be a Lethal Strike right at the heart of the Empire. Due to the fact that this enemy city is well defended, me and my two Brothers, Zhufor The Impaler, and Khârn the Betrayer will personally lead this Invasion. Together, we will crush any defence they have arrayed against us. Are we ready?!" I continued, and the entire Army roared their approval.

"Then we shall March tomorrow! Take the rest of the day off to see relatives and family before fighting in the greatest battle this world has ever seen! Dismissed!" I told them, and after cheering a bit more, shuffled back into the city. I turned to Luna.

"Your majesty, I will take my leave now to ready the Librarius Faction, as well as divide them into seperate parts of the assault." She nodded, and I headed towards the Library. When I arrived, I saw that Khârn and Zhufor were there, waiting for me. I nodded to them both respectfully before entering the Library. As I walked in, Khârn called out to me.

"I want the 45th Company to be on the frontlines. I'm not taking no for an answer. Even if I have to disobey orders, I want my Company to be in front." I simply nodded before heading into the basement.

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Celestia's POV

I was standing in the command post, discussing what we should do against the likely assault when two guards came in, with a familiar hooded pony walking in behind them. I nodded to the guards, and they left. The commanders had stopped talking, instead looking at the newcomer. The hooded pony knelt before me, then began to relay the news.

"Luna's Right Hoof has targeted Manehattan for a seige, hoping to take it and cut off all trade throughout the Empire. Her right hoof, Ahriman The Exiled, appears to be a extremely talented Mage, and is head of their 'Librarius' faction. From what rumors I've heard, he is able to summon Demons and command the foul beasts like dogs. Some of their own soldiers fear him after seeing his power, but won't speak about it with anyone. He is the biggest threat, along with two others of his kind, Zhufor The Impaler, and Khârn The Betrayer. They March for Manehattan at the dawn of the night." He then stopped, knelt before me again, and slipped out silently. The Commanders all looked at me.

"Who was that, your majesty?" Commander Lulamoon asked. I shook my head.

"Nopony important, I assure you. Now, let us continue." I told them, and they returned to their previous conversation.

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Ahriman's POV

After speaking to the other Librarians, I went up into my personal quarters, and meditated. I felt my Soul being pulled from my body and guided through the Warp by her tides. I felt the presence of the Deamons of the Warp trying to scratch at my enchantments, but to no avail. I continued to glide through the immaterium until I reached my destination. Walking towards the gates, I simply knocked, and closed my senses, since there is no need for eyesight or smells in the Warp. I sensed the gate open, and I walked inside. I looked up to the immeasurable power I felt in front of me.

"Lord Tzeentch, the plan goes smoothly. Soon Celestia shall fall, and Luna will rule as your messenger, spreading Chaos throughout the land." I told the God of Change, and felt his words leak into my mind.

"Good, Ahriman. The pieces are falling into place. Or not. Maybe they are all scattering throughout the Multiverse, like this item I found popping into our universe". He handed me a small item that looked like a Sword, from the reading I was getting from it. I also sensed a large Power contained within. I traced the power back to it's Signal, and saw thousands of other universes. I absorbed all the knowledge that I could from this token before exiting the memory of the token. I reactivated it's message.

" Hi my name is Craig. If ever you are in danger, are scared, frightened or even just need an ally to stand by your side in your darkest hour. Call on me and I will come and do everything in my power to aid you." The message ended after that.
"I see. So there are other universes like this one. Perhaps I should send my own Token out there. After the war, of course." I mentally looked up to Lord Tzeentch, and bowed again.

"I thank you, Lord Tzeentch. May the Great Plan be a success." I tell him, and will my souls to return to the Material realm. I open my eyes to see one of the Librarians in front of me.

"Hello, Lucky Charm. What brings you to my quarters unnanounced?" I ask her. She gulped.
"Lord Ahriman, the cry of war calls for us. The time has come." She answered, shifting from one side to the other. I nodded, then rose to my feet.
"Well then, let us lead the Army. You know where your to be assigned?" I asked. She nodded. "Good. I shall see to it that we win this battle. If the Loyalists do not kneel, then much suffering is at hand." I then walked out of my room, and she trotted in a different direction.

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Lucky Charm's POV

As soon as I turned the corner out of the Giants sight, I immediately let out a breath I didn't know I was holding. True, I had heard the rumors about Ahriman actually being able to communicate with Lord Tzeentch, but did not believe it until now. The amount of power coming from that hidden area within the Warp.... I shuddered from just the thought of it. I wonder what they were talking about though...

Shrugging it off, I proceeded to move towards the Armoury to prepare for the coming battle, not noticing the feeling of dread ominous from within Ahriman's room...

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Khârn's POV

As I approached the parade grounds, I was interrupted by a batpony.

"Lord Khârn, you have been promoted to Major General by order of Chief Librarian Ahriman. You are asked to report to the command tent at once." With that said, he quickly ran off to join the army. I snarled before redirecting my course to the command tent. When I entered, I was saluted by most of the batponies there. Ahriman just nodded. I walked up to him, then proceeded to slap him upside the head. He stared blankly at me.

"WHY THE HELL DID YOU MAKE ME A MAJOR GENERAL?! WHO IS SUPPOSED TO LEAD MY COMPANY NOW?!" I roared at him, noticing some of the guards clutching they're spears tight.
"A replacement shall be arranged. But before that, we would ask of you to select your personal guard. A Major General who fights on the front lines will need a personal guard, even if it is you." He stated calmly, waving off the guards, who immediately relaxed. It seemed that Ahriman had major sway over the guards. I noted that, then turned back to him.

"Fine. But I WILL be with my Company. You hear me?" I told him, feeling something start to drive itself into my brain. He nodded, and I immediately began listing off a select few of the 45th, which included Steel Wings, two Khornates, and five normal Batponies. Ahriman looked at the list, fetched a courier, and gave him the list.

"Bring these soldiers to me." He told the courier, who rushed off to complete his task.

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Third person POV
Three days later.

As the Batpony army marched through the Empire's terrirtory, they met little resistance in the towns that they passed through. Mostly a small regiment of Solar Guard, as well as patriotic citizens, both of which quickly fell before Gorechild. And on the Eve of the third day of travel, the vanguard of the Lunar Republic had reached the outer reaches of Manehattan.
(Quick note: the cities of this time are like Whiterun from Skyrim.)
During the night, they set up camp, and awaited the rest of the army.
Said Vanguard was the 45th Company, led by the Khornate Khârn the Betrayer, whom by many in the Solar Empire had been dubbed the God of War's Avatar, or the God himself.
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Quickfoot's POV

As I studied the Lunar Camp, I noticed a few unknown banners strung about, with a symbol that hurt my eyes to look at.

As I quickly scratched down my findings on a parchment, I quickly hid under a bush to avoid a patrol. I looked up again, and my heart stopped. Sitting in the middle of the camp, chuckling with a group of red Batponies, was the rumored war god himself. Ever since his first meeting with the Solar Guard, an attack on a convoy, rumor about him spread like wildfire. That's when the reports began to come in.

Fight after fight was lost down South, with survivors telling the tales of a armoured giant in red, with an axe that roared like thunder. After a dozen losses, Celestia herself banned any assaults to the southern frontier, not wanting to risk any more precious lives. I quickly snapped out of the memories to scribble down my findings when a deep voice called out to me.

"You there! In the bushes! Come out now, and I might not rip out your spleen to feed to the bears." I gulped, setting down my notepad before slowly stepping out. I looked up to see the face of death staring at me. Yelping, I quickly jumped back. The metal giant roared with laughter, a horrid sound like bones grinding into dust.

"This one has a Spring to her step!" To that, the red Batponies joined in his laughter. After a few minutes, he stopped, looking down on me. I gulped, slowly backing up until I backed up into the bush, accidentally knocking my notebook out and onto the floor. The metal giant grabbed the book before I could even blink, flipping through the pages.

"Hmm, pretty detailed info you got here. It would be a shame if this got into the hooves of our enemies. This won't do." He said, tossing the journal into the fire. He then looked down on me again, this time with a look that reminded me as a look of remembering something.

"How about this, little pony? I will let you live on one condition: you serve me as a personal writer." To this I raised my head, looking at him like he asked me to give him a massage.

"A... a writer?" I asked, finding my voice.
"Indeed. You will record my glorious battles, and when all of this is over, you will retell these stories for all to hear. The Glorious Tale of Khârn The Betrayer!" He boasted, getting a roar of approval from the red ponies. I gulped, then considered my options. Either I take the job and live to possibly escape another day, or die here and now to Kharn. To be honest, living and writing stories was a better deal than death. So, I nodded. There was a sick gleam in his eyes.

"Good. Now then." He turned to the ponies at the campfire. "Get over here, remove her armour and restrict her wings! Or remove them, whichever works." He ordered them. There was a sick grin on their faces as they walked towards me.

"And no raping her! If you wanted to do that, you should've signed up with Slaanesh!" Some of the grins quickly fell.

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The next day.
Khârn's POV.

As I walked outside the tent, I stretched my arms, feeling the light of the sun shining down on my armor. I looked about to see my Company soldiers also waking up and grabbing their armor. Today was the big day. The assault on Manehattan was about to begin. I looked to a catapult, and got an idea.

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Unimportant Solar Guard POV

As I felt the radiance of the sun shined down upon me, I felt a surge of power, as if Celestia herself was giving me strength. After the news of the possible Lunar invasion, I knew I might need it. Suddenely, an unfamiliar horn blasted across the fields in front of the Manehattan walls. I quickly snapped my eyes open, searching for the source of the disturbance to this peaceful morning. I looked down and saw a batpony. I immediately raised my spear, but the foul beast spoke first.

"The Lunar Republic strongly asks for your surrender! Surrender now, and your lives will be spared. If not, then the Warp will claim many souls until you do." The batpony asked, reading from a peice of paper. I pointed my spear at him/her.

"Never! Though you may be many, Manehattan will not fall today! So tell your Traitor princess that we will never surrender!" I told the batpony. It just smiled before walking away. Remembering protocol, I quickly got out my horn and raised the alarm. As multiple guards manned the walls, silence filled the air. It was after five minutes that a gruesome scream of rage pierced the silence, along with a menacing growl. The sun was suddenely blocked by a shadow, and I looked up right before getting smashed in the face with a massive metal boot. I then prominently blacked out.

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Khârn's POV

"Hahah, yeah! I knew the Space Marine Catapult would work as a tactic!" I shouted, tearing my way through the guards at that spot. It was after I cleared the immediate area that I let out the signal to commenced the attack: a phrase that cut across the entire city, stilling the hearts of any civilians :
"BLOOD FOR THE BLOOD GOD!"
Then the 45th Company charged, their new banners flying high in the air, while also screaming the end of the phrase as one.
"SKULLS FOR THE SKULL THRONE! Arrows began firing from some other areas of the wall, and a group of guards erupted from a nearby watchtower.

They saw me, gaped at me, then ran back inside, leaving a rather large puddle behind them. I roared, tearing through the wooden door with Gorechild. I then looked through the massive crack, and referenced a certain movie.

"Heeeres Johnny!" I told the guards, right before bursting through the door, the sounds of screaming all around me before a small spear stabbed into my exposed arm. I stopped, looked down at the spear, then the guard holding the spear, then proceeded to break the spear, as well as tear off his head with my hand.

"Another slightly worthy skull to join the collection." I told myself, absent-mindedly tearing through the rest. I had recently begun to collect the skulls of any who managed to break through their fear of me and also manage to even slightly injure me, as a way of respect. After the rest were devoured by Gorechild, I added the head I ripped off to the small amount I had collected on my belt. I checked my kill counter, which showed me my amount of kills throughout the entire time I had been in service withas the Lunar Guard. 4,375. Good so far.

As I exited the tower, my personal guard popped up around me in two lines, kinda like Vader from star wars. I subconsciously hummed the tune of Vader's walking, which sounded like I was trying to cough up a entire uneaten Pizza from my throat. The guards looked at me skeptically, but said nothing. We then moved on to clearing through the rest of the walls defence until the Solar Guard leader called for a retreat. The 45th laughed as they ran, taunting their foes as they ran with their tails between their legs. When they vanished, I turned to the 45th.

"Good job, 45th! As much as I would gladly give chase, we should wait for Ahriman and the rest to arrive, as to give something for them to fight. So, let's set up camp here!" I boasted, to which they cheered and began setting up tents. I looked back to where the Solar lackeys had run off to, then headed back towards the camp, eager to retell the story of today.

Author's Notes:

Welp, there's the first day of battle! Also, a few quick notes.
First of all, as a newbie to chaos lore, I am unsure if any of the stuff I write is correct or not.
Secondly, no, I am not using The Nails with Khârn and Zhufor
Not yet anyways. Give it time.
As always, check for spelling errors, and constructive criticism is allowed!
Note. I will also be doing crossovers, but not yet. Waiting till later.
See ya next chapter!