The United States and its NATO allies may want to "re-examine" their plan to withdraw all of their troops from Afghanistan by the end of 2016, the Central Asian country's president told CBS in an interview that aired Sunday evening.

"Deadlines concentrate the mind. But deadlines should not be dogmas," Ashraf Ghani said on "60 Minutes," the network's long-running news magazine. "If both parties, or, in this case, multiple partners, have done their best to achieve the objectives and progress is very real, then there should be willingness to re-examine a deadline," the Afghan leader continued.

The U.S.-led coalition marked the formal end of the its combat mission in Afghanistan last week, Fox News noted. The 13,500 troops of the International Security Assistance Force (ISAF), the vast majority of them American, have since transitioned to a supporting role for the local military, the news channel detailed.

In the words of outgoing Defense Secretary Chuck Hagel, these forces are to train their Afghan counterparts to conduct "counterterrorism" operations "against the remnants of Al Qaeda," the Christian Science Monitor recalled. But even that limited role is supposed to expire by the end of next year.

Ghani told CBS that in the face of the planned withdrawal, one of his key concerns was that the Islamist terror group ISIS might attempt to expand into Afghanistan, Reuters said.

"The past has shown us that threats, that networks change their form," the president warned.

But ISIS, which refers to itself as "Islamic State" and controls parts of Iraq and Syria, would face effective opposition from the Afghan military, ISAF commander Gen. John Campbell insisted, according to Fox News. The general added that the reputation of local troops had improved so much that the Afghan National Army is seen as "the number one respected institution" in the country.

"This is not Iraq," Campbell said. "I don't see (ISIS) coming into Afghanistan like they did into Iraq. The Afghan Security Forces would not allow that."

Ghani's call for a reconsideration of the 2016 deadline, meanwhile, has yet to elicit an official response from the White House, State Department or Pentagon.