A day after American officials said Turkeyhad agreed to allow its air bases to be used for operations against the Islamic State, which they described as a deal that represented a breakthrough in tense negotiations, Turkish officials said on Monday that there was no deal yet, and that talks were still underway.

The Turkish comments represented another miscommunication between the United States and its longtime ally Turkey, as President Obama pushes to strengthen an international coalition against the militants that control a large area of both Syria and Iraq, by securing a greater role for Turkey.

The Turks have insisted that any broad support to the coalition is dependent on the mission going beyond the Islamic State, also called ISIS or ISIL, to also target the Syrian government of Bashar al-Assad, which Turkey has long opposed and blames for creating the conditions that led to the rise of the extremists within Syria and Iraq. […]