"We expect the coalition forces, especially the USA, to keep the promises given to Turkey in this regard", Fikri Isik told journalists, adding that Turkey's priority is the city of Manbij.
In al-Bab, Turkish forces took the city, but Syrian troops took the immediate south, effectively cutting off any deeper Turksih advances.
"We do not wish any of our allies to stand with terrorist groups", Cavusoglu said.
The SDF includes the powerful Kurdish YPG militia, viewed by Turkey as an extension of the Kurdistan Workers' Party (PKK), a group that has waged a three-decade insurgency in Turkey. Clashes between Turkey-backed rebels erupted, but eventually both started moving eastward, toward the important, Kurdish-held city of Manbij.
The Manbij Military Council, part of the Kurdish-led Syrian Democratic Forces, says that under the deal, they will withdraw from a front line as rival Turkish-backed forces near the Euphrates River. Top Turkish officials are increasing pressure on the Trump administration to dissolve the American military partnership with Syrian Kurds in the battle against IS.
The White House proposes eye watering budget cuts
But it's notable that so many lawmakers in the White House's own party are railing against his sharp budget cuts this early. Defense Secretary James Mattis is expected to complete a spending plan outlining specific needs over the next few months.