Total War Rise of Mordor- Dorwinion's Attacked.

Hello Total War and Lord of the rings fans! My sixth upload on Rise of Mordor is here! As Gondor fall to the dark forces and retreat back to Minis Tirith, Isengard have unleashed an attack toward a Dorwinion Stronghold. Can the Dorwinion forces, force the enemy away? And finally have there part in this war?