Nagorno-Karabakh is among the issues that the presidents of the United States and Turkey will discuss during their meetings on the sidelines of the NATO summit.

Speaking at a briefing, US National Security Advisor Jake Sullivan said the two leaders will have an expansive discussion on the Eastern Mediterranean, Syria, Iran and Nagorno-Karabakh.

Sullivan said both Biden and Erdogan, who have known each other for many years now, were looking forward to having a “business-like” opportunity to have a broad review of bilateral ties. He also said the role that Turkey will play in Afghanistan as the United States withdraws from the country will be part of the "expansive agenda".

In addition, the meeting will also review their ties and look for ways on how the United States and Turkey deal with some of their "significant differences on values and human rights and other issues", Sullivan said.