Hello friends. As you know, i am russian sci-fi\fantasy writer (not only modder for TW). Here i`m working with my new incarnation of my sci-fi universe. Its about the saga of 2596 year AD, when galaxy turns to the period of Acheron war between Intergalactic Coalition and Achaeron League. This universe sometimes can remind you HALO, Mass Effect or Stargate, but its my unique work, so all ideas, which you`ll find there, are my own, and didn`t taken from other worlds.

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Rise of the Acheronian League.
(or what triggered the beginning of the Acheronian War in the galaxy in general)

The League's ascension began with the Gathering of the Consistorium of the Great Races on the planet Acheron Prime, which belongs to the Unn-chor Empire. After the Draconian War, the hatred of many civilizations for the Elfurr state increased hundreds of times. If earlier the mysterious race of Elfurr was treated with great suspicion, but at the same time they preferred not to rant about its tyrannical foundations, then after the elimination of the Ser-Azzrai regime on Kroko, the situation changed. Elfurr raids on draconian planets and on the worlds of Kosatti have rocked the galaxy. Even when the dictatorship of Ser-Azzrai fell, most civilizations no longer regarded Elfurr as allies. At the end of 2592, a massive exit from the Coalition of entire interstellar states followed. The first to leave the Coalition of the Galaxy were Unn-Chor, led by the high priest Olmek R-Llandris. The second was followed by Ho-Nari, led by the high priest Fei Hoa. Sozidaus came third, making this final decision at the Council of Four. Some of the Aranguto states also followed the great races who did not trust the Coalition's pro-Elfurrian rule. Soon, at least 8 civilizations left the Coalition. The Khazaars, Kosatti and Ara-Nii had not previously been part of any associations. The Elfurr did not prevent many races from leaving, but they warned them that they were making an irreparable mistake. St-Finghi was the last to leave the galactic alliance. Following them, two human states, such as Neo-Liberon and Geranium, announced separation. The Elfurrian pharaoh Senuhsert called the act of these people unreasonable and warned about their difficult future without the Coalition.
A few months later, in 2593, civilizations and states that left the Coalition of the Galaxy began to cooperate with each other. Olmec R-Landdris has invited rulers of all races who are unfriendly towards Elfurr. On the planet Acheron Prime, the first meeting of the leaders of states that left the Coalition took place. The first meeting was named the Liberty Staircase. The Coalition was concerned about the gathering of large empires that were formerly part of the galactic association. Empress Farrukh Yuay Ang called this advice a dangerous undertaking. Many leaders of the Coalition expressed concern that the meetings organized by Olmec and calls for unification into a new alliance threaten a total split in the Galaxy. Fleet Admiral Zarina Menchfidel of the Elfurr Empire described Olmec's actions as an attempt to unleash an all-out galactic war. Olmec denied his participation in the anti-Elfurr association. He reported that the meetings held at Acheron Prime were not related to the discussion of the Elfurr aggression. But a month later, a new summit was held under the leadership of Olmec and his allies. The summit announced the creation of the Acheronian League in opposition to the Coalition of the Galaxy. Olmec R-Llandris officially announced the creation of a new association. He did not call his alliance Anti-Elfurr, but did mention that the League would be firmly opposed to any aggression. The Coalition Board called the Acheronian League "a dangerous organization of otherworldly people seeking power."
Closer to the standard April 2593 (in Earth reckoning), the Acheronian League first intervened in the affairs of another state. The anti-Elfurr sentiments instilled by Olmec and his comrades have spread to a good half of the galaxy. Because of this, massive protests began on thousands of planets. Demonstrations were usually suppressed by the Coalition's intelligence services, and the instigators were sent to prisons. But riots continued to erupt. In the Castambol Federation, a rebellion broke out against the local president who supported Elfurr. The people of Castambol took over the government quarter overnight, killing all the authorities. The rebels announced the joining of the federation to the Acheronian League. They called Elfurr the greatest threat in the universe. Olmec R-Landis willingly took the rebels under his wing, even though they were human. Since the annexation of Castambol, anti-Elfurr calls have been heard more and more frequently at League meetings. It all ended with the League's representatives closing all their consulates in the territories of the Coalition. There was a complete diplomatic rift between Acheron and the Coalition of the Galaxy. One of the prominent representatives of the Coalition's psi-special forces, Frederic Kartavin, called this step a declaration of war. The League also announced that it was not going to start a war with Elfurr, but at the same time it would not maintain any relationship with them. In the territories of Acheron, the Elfurric language was banned. All elfurr representatives have been expelled.
The last straw was a quarrel between the League leadership and the Earth Alliance closer to 2595. The last negotiations between the President of the Earth Joanna Kilich and the head of Acheron ended in a conflict situation. Joanna called Olmec "a power-hungry four-armed demon." Olmec told Kilich that "her pathetic planet Earth will be destroyed for such insults." The Farrukh office immediately sent a note of protest to the League leadership. Elfurr called such insults in the negotiations unacceptable. It all ended with the Acheronian flotilla hitting Earth's merchant ships in the disputed sector of Betelgeuse. The merchants called for reinforcements from the nearby Mirandolina space base. The help quickly destroyed the League's fleet in this system. Upon learning of the attack on his ships, Olmec ordered to send three combat armada to Betelgeuse. The Earthlings immediately requested help from Elfurr. The Elfurrian Allied Flotilla helped stop the League's advance. After the defeat of Acheron at Betelgeuse, Olmec convened a new summit, inviting all the allied leaders there. At the meeting, he formally declared war on the Elfurr Empire and the entire Galaxy Coalition. The war was supported by all representatives of the League, without exception.

War before the Achaeron War.
From "Donald Trump" to Cosatti Prime. Year 2590

In 2590, a full-scale war nearly broke out between the Earth Alliance and the Ho-Nari Empire. The confrontation between the High Priest of the Ho-Nari race (an arthropod race inhabiting the galactic east) Fay Hoa The Wisest and President Mitchell Pronin over the colonies on Procyon-12 could develop into a galactic conflict at any moment. It all started with the development of Procyon-12 by earthlings. The "Donald Trump" Expeditionary Mothership was the first to land on the planet, fully entering its crust. Fei Hoa immediately tracked down the colonists and sent a note of protest to President Pronin in connection with the "illegal expansion." As it turned out, there was a whole island on the planet, on which the ancient shrines of Kho-Nari stood for a long time. The Ho-Nari did not touch Procyon-12 due to its "sacredness". However, the planet was rich in minerals and was ideal for colonization. In addition, in 2585, there were serious tremors on Earth in the Yellowstone zone, which indicated the impending awakening of the supervolcano. Despite the fact that the Alliance has mastered enough exoplanets, new worlds with favorable conditions have become a tasty morsel for his government. As a result of negotiations between Ho-Nari and Earth, it was decided that colonization would take place only in the eastern hemisphere of Procyon-12. The West will remain with the Fei Hoa government. But things didn't go according to plan. In mid-2590, there was a brief conflict between the Alliance and the aquatic reptile race, Cosatti. Despot of Kosatti Ser'Chamurunkhi has ordered drone fleets to launch attacks on Earth colonies. One of these armadas attacked Procyon 12, and in particular the Donald Trump base. Since the Kosattians bombed everything that reminded them of structures, the Ho-Nari temple complex was also hit. Soon, the Earthlings repelled the attack using Trump's defensive systems and destroyed the drones. But Fei Hoa, upon learning of the attack on the shrines, immediately sent a new note of protest to Mitchell Pronin. He accused Pronin of violating the colonization treaties and of sacrilege. The Ho-Nari shrines were almost completely destroyed, which provoked outrage in the council of the Holies. The Ho-Nari Large Fleet originated in orbit with Procyon-12. President Pronin had to contact the Coalition Council and the Order of the Father to clarify the situation. The order sent envoys to the Ho-Nari Empire. As a result of new negotiations, it was decided that the earthlings are innocent, and they are not responsible for the destruction of the temple complex. The father of agent Ishken Derh, the Nicomedian count Onstant'Derh, took part in the negotiations. Fei Hoa listened to the delegates and ordered the armads to retreat from the Procyon sector. The threat of a full-scale war has passed the galaxy. Pronin also promised Fei Hoa to deal with the Kosattians. A month after the events, the Ho-Nari armada, supported by Elfurr, the Earth Alliance, and the N-Sai Union, entered the Kosatti systems. Ser'Chamurunha was ordered to stop military aggression. The Ho-Nari threatened to destroy Kosatti Prime with the Atmosphere Vaporizer (climate superweapon). However, the leader of the aquatic race agreed to pay a large contribution to Fei Hoa and help rebuild the temples. Moreover, he betrayed Kho-Nari the perpetrators of the destruction of the shrines, his two generals - Ser'Chargriman and Ser'Fakhatsian. At this, the interracial conflict was ended. The Kosattians were also forced to pay an indemnity to the Earth Alliance. As Ser'Chamurunhi himself later expressed, all this was done not out of repentance, but only for the sake of saving the Kosatti people. Procyon-12, in order to avoid new attacks, was fortified on all sides by the most powerful energy systems. "Donald Trump" has received a whole bunch of new technological improvements.

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Thanks anyway

Regards A.K.Krokhmal