The Elven March

The only time the Elves have been recorded marching to war, near the end of the Heroic age, against the fledgling Kilaani Empire.

Causes
A group of 7 human warriors led by Kilaan, all legends in their own rights, decided to travel Northwards to seek further glory, leading armies with them. After a period of conquest over the Elves in the region now known as Kilaana, more northerly Elves marched to their defense, and the Elven March as it came to be known began..

Results
The March led to a long and bloody stalemate along the borders of Kilaana. So long was the stalemate that the invaders began to settle behind these lines, and formed into the Empire of Kilaana.

Eventually an uneasy peace settled over the two groups in an effort to halt the bloodshed, which has persisted to this day.