Lore:Fourth Era Wars

thumb|The Great War
The following is a list of all known wars and conflicts during the Fourth Era.

The Accession War
  

Also called simply the Argonian Invasion.  After the eruption of Red Mountain, the Argonians took the opportunity of a weakened Morrowind to invade the region, seeking revenge for thousands of years of slavery, or so one theory states.  Some southern parts of Morrowind seem to have been temporarily conquered by the Argonians, and thousands of Dunmer were killed, while others were exiled. They were forestalled from sweeping through all of Morrowind thanks to the efforts of the Redoran-dominated Dunmer army, which had grown substantially following the Empire's withdrawal of troops from the province during the Oblivion Crisis.  It is unknown if the Argonians retained the invaded regions or not, but Mournhold - which had been sacked during the Invasion - was back under Dunmer control by 4E 201. 

Umbriel Crisis
thumb|Umbriel
 

The floating city of Umbriel, a fragment of Clavicus Vile's Fields of Regret, came from the south up through Black Marsh and southern Morrowind and into Cyrodiil. Several major cities were destroyed or besieged, culminating in an assault on the Imperial City

Major Battles
 ,  . Although the Argonians at Lilmoth were possessed, a number of plantations in the surrounding countryside fought against the horde of undead sea creatures resurrected by the city. They were all overrun and the defenders were also reanimated and joined the march.
The cities of Stormhold and Gideon soon fell to the undead army as Umbriel continued to head north.
 , 4E 48. A few Imperial Legion patrols attempted to slow the advance of the undead, but were all defeated and either fell back or joined the march.
 , 4E 48. The undead advanced into Cyrodiil and overran the city of Cheydinhal. The defenders held the city for a long while but eventually they fell back on the Imperial City. The undead did not occupy the city so local people returned there afterwards.
 , 4E 48. The undead army advanced on the Imperial City in an effort to take control of the White-Gold Tower, causing mass panic among its citizens. The Imperial Legion attempted to hold the line along the Red Ring Road, but were ultimately driven back to the walls of the city. The Synod and the College of Whispers worked together to bring down the floating city, but also failed. Umbriel was eventually banished from Mundus by a group of heroes.

The Great War
thumb|Imperial Legion
 

The Forsworn Rebellion
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During the Great War in Cyrodiil, Imperial Legions stationed in Skyrim's region of the Reach and its capital, Markarth, were recalled to help repel the Aldmeri Dominion's invasion, leaving the western region vulnerable to its native population, known as  , who successfully revolted and created an independent kingdom.

To deal with the rebellion Jarl Hrolfdir, the father of future Jarl Igmund, called upon a Nordic militia led by Ulfric Stormcloak to retake the Reach from its native inhabitants with promises of freedom of religion.  The uprising was ultimately quelled, but not without consequences. Despite the Empire's vows for free religion, the Thalmor discovered the worship of Talos taking place in Markarth, and demanded the arrest of Ulfric and the other members of the Nord militia. To honor the White-Gold Concordat and keep the peace with the Dominion, Hrolfdir was forced to comply to prevent any future invasions by the Aldmeri Dominion. One of the policies he was forced to agree to was the arrest of members affiliated with the Nord militia that helped overthrow the Forsworn. Hrolfdir helped arrest Ulfric and the other members of the militia to prevent another war with the Thalmor. In retaliation, Ulfric Stormcloak refused to observe the agreement and decided to allow the freedom to worship Talos himself when he became the new Jarl of Windhelm, sparking the future Stormcloak Rebellion.

Major Battles
Battle of Markarth,  . Reachmen quickly breached Markarth's city gates and annexed the city. Years later, Jarl Hrolfdir, father of the future Jarl Igmund, was killed by the Forsworn. 
The Markarth Incident,  . Under the leadership of Ulfric Stormcloak, the Nordic militia retook Markarth while inflicting heavy casualties on the Reachmen rebels. When the independent kingdom of the Reach was overthrown, there were executions, including the deaths of some civilians of Markarth who were native members of the Reach. Surviving stragglers of the Reachmen continued to rebel, forming the Forsworn. 

The Stormcloak Rebellion
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References