Æsir−Vanir War

The Aesir-Vanir War
Result	Indecisive. Exchange of hostages (Hoenir and Mimir to Vanaheim and Njord and his children to Asgard)
Belligerents	Vanir
Versus	Æsir led by Odin, Tyr and Thor

The Æsir-Vanir War was a conflict between the Aesir and Vanir. The war was sparked by the burning of Gullveig and resulted in the unification of the Norse-Germanic pantheon by the exchange of hostages.

File:300px-Æsir-Vanir war by Frølich.jpg

Odin throws his spear

Gullveig

Gullveig was a woman who was set on fire thrice by the Æsir. It is unknown why and how this sparked the war but eventually, Odin and the Æsir attack the Vanir. Eventually the gods reach a truce, with Njord, Freyr and Freyja being sent to the Æsir and Hoenir and Mimir to the Vanir. During the peace talks, it is stated by Bragi, the gods spit into a bowl and create Kvasir, the origin of poetry.