Nice fanon.
50 years. That's how long it took the Imperium to drive out the Qunari occupation. But the rest of Northern Thedas was not so lucky.
Both Divines, white and black, declared Exalted Marches and for the only time since the Schism of the Chantry, they worked together. A century-long siege resulted, with the giant Qunari entrenched in Antiva and Rivain, and all of Thedas throwing armies against them.
The war drained the resources of every nation in Thedas, leaving most on the brink of collapse. For the giants, it did not appear to be the damage to their armada or the loss of their soldiers, but the terrible toll upon the Rivaini population that prompted their retreat. When the Third New Exalted March had all but massacred the people of Kont-aar without even chipping the Qunari occupying force, the giants finally withdrew.
The treaty that put an official end to the Qunari Wars was signed on the politically neutral island of Llomerryn off the southern coast of Rivain. 150 years after the assault on the mainland began, the Qunari left our shores. They received the northern archipelago in exchange for cessation of hostilities against all the nations on the accord.
© Codex.
Well i guess this is permission for the derailing of the Thread, don't blame me for when this has gone for three straight pages though.
Series of events for the Qunari War.
The Initial Attack 6:30 Steel of Imperium Controlled Par Vollen was rapidly taken.
By 6:32 Steel the Qunari were invading the Borderlands of Ravain and Sehron.
6:34 the Invasion of Antiva, The Imperium and Ravain began proper at this time as well, Great gains were made during this period.
At the same time they opened a front in the free marches , During the next ten year period much of the Imperium was conquered at great loss to both sides and only the capital of Minrathous remained unconquered but besieged.
By 6:85 Steel the Human kingdoms finally rallied together and began an organized offensive against the Qunari, At the same time mass rebellion began in Qunari occupied Tveinter.
The war continued into the next Century and thus under mass human counterattack the Qunari were expelled from much of their captured territory and pushed back to Sehron and Ravain by 7:23 Storm, This was the first turning point of the war.
7:55 the formation of the Pirate Armada that later saw a massive Qunari fleet defeated in 7:78 Storm, And even began minor invasions of the Qunari Homeland it self. And the recapturing of Estwatch a critical island of strategic importance to both sides.
7:56? Storm The Joining of the Black and White Divines, The Imperium now mostly liberated from Qunari Hands, Joined in hand with the Chantry of Thedas and declared the new exalted march upon them to retake Rivain, and Seheron and Qarinus in Tevinter.
The first New Exalted March proved successful, as the holy armies managed to venture deep into Qunari-occupied territory, and plunder Qunari artifacts, such as Tome of Koslun.
However, the second New Exalted March that took place 27 year later was a disaster, as the Qunari recaptured much of Antiva. The Qunari landed near Ostwick and launched assaults against Starkhaven and Kirkwall. Starkhaven prevailed, but Kirkwall fell due to the magic of the Saarebas. The city remained under Qunari power until Orlesian Chevalier Ser Michel Lafaille liberated Kirkwall in 7:60 Storm. He found that most of the population was converted to the Qun. Kirkwall was incorporated into the Orlesian Empire, and Lafaille became the ruler of the city, named Viscount by the emperor.
The Exalted March ended 24 years later in 7:84 Storm. The Qunari were in retreat, yet still holding on to Kont-aar and Par Vollen.
The war ended two years later with the signing of the the Llomerryn Accords.
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The sources for this information include WOT and DA wiki on the topic.
Ultimately i look at the series of events and see what i perceive as a failing offensive in the Thedosian Mainland and being struck by Raiders to pillage shipping lanes and even begin minor invasions of the Qunari Heartland just combined with the sheer losses inflicted from the war by this coupled together to force the Qunari to the bargaining table.
Its debatable certainly, but non fanon.