Military preparations are underway for further attacks on ISIS strongholds in Syria and Iraq, both neighboring Turkey, from a strategic air base in southern Turkey.
"This is the beginning of a new understanding of military cooperation between the NATO allies," a senior Turkish diplomat for security said. "We have been able to bridge many of our differences regarding what needs to be done [against ISIS] and how."
One senior military official said that the military advised the Turkish government to counter any threat from ISIS "in cooperation with the international coalition fighting the group."
"We cautioned the government about potential repercussions of unilateral action in uncharted territory," he said. "Full international legitimacy must be a sine qua non for any operation in a neighboring country."
In a video it released Aug. 18, ISIS threatened Turkey by calling for the "conquest [by jihadists] of Istanbul," Turkey's biggest city.
"We are pleased of this emerging opportunity that will no doubt boost allied operational and logistical capabilities and firepower," he said.
Could the new US-Turkish cooperation be reflected in Turkish procurement programs for which US manufacturers are bidding? "That remains to be seen," said one procurement official. "Too premature to tell."
But an Ankara-based analyst said smoother cooperation between Ankara and Washington during the campaign could inevitably bring the two militaries closer and lure Turkish generals into US systems and solutions.
"That can be one uncalculated side effect of fighting against a common enemy," he said.