Head for the Imperial camp near the fort. Talk to Rikke and she will send you to Fort Greenwall. This operates exactly the same as Amol did. To finish this quest, you must clear out all of the enemies. You will be regularly updated with how many enemies remain. When it hits zero, no more enemies will respawn and the quest will be completed but there may still be enemies remaining. They will likely run away at this point though. When you can, return to the General to report it.

• 참고: TESWIKIA (The Battle For Fort Greenwall)