Turkey, however, regards the People's Protection Units (YPG) as a terrorist group and has vowed to crush it.
"We also know that those fighting alongside us for all this time deserve to be protected as well," he said.
"Many details (are) still to be worked out but I'm optimistic that we can achieve a good outcome," he added.
Erdogan had said that the US did not know who the various Kurdish groups were, adding: "If the US evaluates them as 'Kurdish brothers' then they are in a serious delusion."
Turkey considers the YPG an extension of the banned Kurdistan Workers' Party (PKK), which has fought for Kurdish autonomy in Turkey for three decades. The YPG denies any direct organisational links to the PKK.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)