Not all of the Corsairs in Abadec's Watch are willing to continue fighting.
'Some of the Corsairs who have flocked to Abadec's Watch seek safety rather than a cause to continue fighting. If you find any Corsairs who seem hesitant to draw their weapons, please convince them to find me. I promise to help them find peace in Gondor, or a safe voyage home to Umbar.'
Dolvir has asked you to convince war-weary Corsairs to seek him out for help.
You can find weary Corsairs in Abadec's Watch in the south-west corner of Belfalas.
You have successfully convinced many weary Corsairs to leave Abadec's Watch.
Dolvir waits for you amongst the trees to the north of the camp. You should talk to him.