US President Donald Trump has vowed to bring Afghanistan war to an end, but has not ruled out the possibility of leaving a small number of troops in the country.

“We have been there for 19 years, almost, we are fighting very well. We‘re fighting harder than ever before. And I think that they will – I think they (Taliban) are tired and, I think everybody’s tired. We got to get out of these endless wars and bring our folks back home. Now, that doesn’t mean we ‘re not going to be watching with intelligence. We’re going to be watching, and watching closely,” Trump said in an interview with CBS.

Asked if there is a scenario where he would keep a smaller number of troops in Afghanistan, Trump replied “yes.”

“And I’ll leave intelligence here. Real intelligence, by the way. I’ll leave intelligence there and If I see nests forming, I’ll do something about it. But for us to be spending 51 billion dollars, like last year, or if you average the cost it’s – I mean you ‘re talking about numbers that nobody’s ever heard of before,” Trump said.

Asked about resurgence of terror groups like al-Qaeda, Trump said that US would “come back if we have to.”

“We have very fast airplanes we have very good cargo planes. We can come back very quickly, and I’m not leaving,” Trump said.