War of Rectification

While there was no declaration of war, today it is generally accepted that hostilities broke out when the First Ferran Legion crossed the Arkaruan Pass into Hylthia.
== The Bloodless War ==
Even then, the first few months of the war were almost bloodless. The First Ferran Legion simply marched on the southern settlements of Hylthia, at which point the settlement surrendered and a magister and small garrison was installed. However progress was slow as the legion, not wanting to station their own experienced troops as garrison, routinely had to wait for garrison arrive or sometimes turn back and recapture a settlement that had thrown out their magister in the mean time.
The Bloodless War as it is known, ended in the year 206 AtS when the First Ferran Legion undertook the Massacre of Rotterstep.
== The Hylthian Phase ==
After the Massacre of Rotterstep the settlements of Hylthia would no longer simply surrender and turned openly hostile. Many of the larger towns began to train militias and guards to protect themselves from the First Ferran Legion. While the legion remained undefeated, each battle cost them men and material that they could not easily replace this far from the Imperial Colonies proper. 
Soon the legions leadership had to make a decision to press on and hopefully crush the spirits of the Hylthian settlers enough for them to properly surrender or to return to friendly territory to resupply and regroup. Fearing that such a retreat could mean that all the progress they've made could be undone, the legion pressed on trying to end the war before they are attrition away to nothing.
In the end, the legion would find neither victory nor attrition. Meeting the local baron Redor Haystan and his small levy force near the town of Kassinsted, the First Ferran Legion was utterly crushed at the Battle of the Broken Fields. The survivors retreating back to the Imperial Colonies.
Once news of the battle reached Govenor Auxilium Damian in Pomariames he sent his remaining legions; the Second Ferran Legion, the Flarian Legion and the Aurulum Legion to Hylthia. In the meantime the Hylthian settlements flocked around Redor Haystan to sign the First Kassinsted Accords uniting the various settlements together in the Hylthian Alliance. 
Once the colonial legions arrived, they found themselves in a new phase of the war. No longer would settlements surrender or fight guerrilla actions against them, now they faced a large united military force, headed by Redor Haystan. The legions decided to stay together to counteract the alliance's numerical superiority and home ground advantage. 
In the year 210 AtS Redor Haystan managed to bait the legions to the town of Miselar where he defeated the legions at the Silver Battle of Miselar, utterly crushing the Aurulum Legion in the process. The other two legions managed to retreat from the battle but were caught by Redor Haystan personal knight detachment, slowing them down enough for him to defeat them in the Golden Battle of Miselar.
What followed was a slow and well coordinated legionary retreat. They camped in captured cities, improving their defences and leaving behind a small but wall armed garrison. The alliance forces in pursuit had to besiege every single city the legions had captured in the preceding six years of the war. Finally liberating the last occupied settlement in 218AtS. The alliance reconvened for the Second Kassinsted Accords, transforming the Hylthian Alliance into the Confederation of Haystan in the honour of Redor Haystan.
== The Flarian Phase ==
Following the Second Kassinsted Accords, Redor Haystan led his armies into Flaria in the pursuit of the colonial legions. While there were some small scale fighting in western Flaria, the legions at this point had been broken and with the signing of the Lucerian Accords and the success of the Raunum Revolution, the last vestiges of Governor Auxilium Damian's power dissolved as the Imperial Colonies collapsed, ending the war and allowing Redor Haystan to return victorious to Hylthia.