The Exalted Marches evolved over time, I'd say. They've always been an imperialistic tactic of the Orlesian Chantry. Yet, that first Exalted March was mainly justified by the Chantry claiming the Elves were savages who practiced creepy heatheny things. I don't go into the battle of Red Crossing because there is no way (yet) to know what happened there. Either way, it became an imperialistic action later, as the Orlesian Chantry annexed the Dales under the Empire. At first it was just a way to convert the Elves. Occupation came after they won. So they are now military/imperialistic pageant shows by the Orlesian Chantry, but that first one was all about forced conversion and the criminalizing of Elven Cultural Practices.
The Exalted March against the Dales happened a year after Red Crossing.
- 2:5 Glory: Increasing hostility between elves and humans result in numerous border skirmishes between the Dales and Orlais.[1]
- 2:9 Glory: Finally, the elven forces attack the Orlesian town of Red Crossing and quickly take it over. The atrocities they are said to have committed there against the villagers and the town's Chantry enraged humans across the land.[2]
Orlais immediately went to war with the
Dales, but was initially surprised by the ferocity of the elven response. A quick Orlesian victory was not going to happen.
- 2:10–20 Glory: With elven forces having captured Montsimmard and marching on the doorstep of Val Royeaux, Divine Renata I calls for a holy war against the elves. This becomes known as the Exalted March of the Dales. While the elves eventually sack Val Royeaux and push well into human lands, Halamshiral is conquered and the elves are completely crushed by 2:20 Glory.[4]
The lands of the Dales come under Orlesian control, with elven settlements being uprooted and worship of
the elven gods forbidden. The elves are forced to either
live with humankind under their rule or wander as
homeless vagabonds.
[5]
Divine Renata I orders the establishment of the first alienages.