"I tried finding words to respond to this question without causing harm to Serbia, Serbian national interests. The only thing I can say is that we, of course, respect the United States, its power, size, and we respect the US ambassador to Belgrade," Vucic said.
While considering Kirby "a decent man," Serbia's policy is "different from that of the United States," he continued.
"We are carrying out our own policy which does not change from day to day. We consider it responsible, serious, and we will continue to behave this way in the future," Vucic said.
He added that during the recent negotiations with the Western countries, Serbia succeeded to protect its national interests as much as possible, but it would not be so easy in future.
Washington and Belgrade disagree on a set of international issues, such as recognition of Kosovo's independence and its membership in international organizations, as well as mass killings in the Bosnian town of Srebrenica and the resolution of the UN Security Council condemning the killings as a crime of genocide.