The official website of the US Department of Defense quoted from the acting US Defense Secretary Patrick Shanahan during a meeting with his Turkish counterpart Hulusi Akar saying, "The military mission in Syria has not changed about the defeat of IS."
He added, "The Pentagon is working towards stabilizing and activating the capabilities of partners on the ground in the liberated areas."
The Turkish Defense Minister Hulusi Akar visited Washington and met Shanahan in conjunction with Washington's announcement to leave 400 troops in Syria, 200 of whom will be part of the peacekeeping force in Syria.
According to the site, Hulusi Akar declined to answer a question related to the Russian missile defense "S-400" system deal.
The full withdrawal of the US military was expected by the end of April, but defense officials, lawmakers, and some White House assistances expressed concern that tens of thousands of mercenaries are still scattered throughout Syria and Iraq.