Three Hundred Years' War

The Three Hundred Years' War was a significant military conflict that occured between the nations of Goll, Gothenland, Dunland, Burghe, and Mann between 121 and 420 Third Age.

Background
Throughout the first hundred years of the Third Age, the feudal state of Goll had difficulty retaining its ownership of the Goðen region, and, in 120 TA, the Goðen region rebelled, appointing their own king, Godfrey I.This began the Gollish-Gothenland War.

Early Days of the Three Hundred Years' War
The conflict between Goll and Gothenland weakened the Gollish defense, and in 121 TA the Dunni army, led by Edric the Bloodthirsty, invaded and occupied a large amount of Gollish farmland, including several notable villages and castles. The Gollish army was quickly reinforced by their Burghish allies, and the Dunni army was defeated at the Battle of Shadowtop in 122 TA. Edric III was captured, tortured, and executed by the Burghs, and his severed head went missing while being transported back to Burghe.

King Edric IV was crowned afterwards, but being just a boy, did not see battle. The Burghe horde occupied Goll for the next several years while Goll fought Gothenland (ultimately to no avail). Dunland kept the war alive with small skirmish attacks in the meantime.

The Defeat of Goll and the Gothenic Civil War
In 137 TA, Gollish forces were forced to pull out of Gothenland as King Godfrey's army had successfully beaten and bruised them. The Treaty of Lamond stated that Goll would recognize Gothenland as its own nation, and the Gollish King Costen II refocused the war against Dunland. Having recovered Edric III's severed head, he sent it back to the Dunnish queen, Ethelinda of Rodcaster, with the eyes pulled out, his testes in his eye sockets, his teeth pulled and packaged separately in a small coin purse, his tongue cut out and missing, and his severed penis in his mouth. Dunland considered this to be an official declaration of war by Burghe and Goll, and returned to war led by Edric IV. Queen Ethelinda took over domestic affairs while he was away.

Meanwhile, in Gothenland,