The pope's remarks seemed to be a clear warning, and an appeal, to President Donald Trump, who was expected to announce on Thursday at the White House a formal recognition of Jerusalem as the Israeli capital, breaking with US foreign policy that has been in place since 1948, when Israel was founded.
"NATO ministers are able to focus on the core tasks of the job we have to do despite any speculation and rumors", Stoltenberg said a press conference, adding that Tillerson has a strong commitment to NATO.
Palestinian President Mahmoud Abbas noted "dangerous consequences" for the region and threatened to cut diplomatic ties with the US.
There will be cynics who also say that with the Russian investigation possibly closing in on the Trump family and associates, this controversial move provides a perfect distraction.
"Dismantling an agreement on nuclear issues that is working - as the International Atomic Energy Agency has certified nine times - would not put us in a better position to discuss all the rest on the country", she said.
French President Emmanuel Macron told Trump by telephone that Jerusalem's status must be decided in peace talks between Israelis and Palestinians.
The first document also laid out talking points for officials at the U.S. Consulate General in Jerusalem, the U.S. Embassies in London, Paris, Berlin and Rome and the U.S. mission to the European Union in Brussels.
Astana - which became the capital of Kazakhstan in 1997 - is a a gleaming futuristic playground and a totem to the ambitions of authoritarian president Nursultan Nazarbayev, who has ruled since 1991.
Israel captured East Jerusalem from Jordan in the 1967 Middle East war and annexed it in a move not recognised internationally.
The presidential visit, they said, implied recognition of Israeli sovereignty at the site. For decades, U.S. policy has stated that Israelis and Palestinians should negotiate the city's status among themselves.
U.S. officials, along with an outside adviser to the administration, said the president's speech was not aimed at resolving the conflict over Jerusalem. "One can hope that one will develop, our hope is that we're going to see a movement toward a two-state solution".
The officials, speaking on condition of anonymity pending Trump's announcement, said the decision was merely an acknowledgment of "historical and current reality" rather than a political statement and said the city's physical and political borders will not be compromised.
Similar scenes were witnessed in the main square of Gaza City, where protesters waved national flags and pictures of late Palestinian president Yasser Arafat, and in the southern Gaza strip.
It has been fought over for millennia by its inhabitants, by invading Romans, Crusaders, Ottomans and the British Empire, and by the modern states of Israel and its Arab neighbours.
Since Palestinians also consider Jerusalem their capital, any policy that appears to favor the Israelis' claim over the Palestinians' is extremely contentious.
In 1994, after apartheid ended, there was a movement for a new capital to be created à la Canberra or Brasilia - to allow a fresh start, but this never happened.
"The status of Jerusalem is a question of international security that concerns the entire international community".
Muslims regard the site as the third holiest in Islam, after Mecca and Medina.
This windswept city in the frozen steppe was briefly called Akmola but changed to Astana because the former means "white grave".
Jews call it Jerusalem, or Yerushalayim, and Arabs call it Al-Quds, which means "The Holy".