Obbürgen, Switzerland. Eighty countries jointly called Sunday for the “territorial integrity” of Ukraine to be the basis for any peace agreement to end Russia’s two-year war, though some key developing nations at a Swiss conference did not join in.

The joint communique capped a two-day conference at the Bürgenstock resort in Switzerland marked by the absence of Russia, which was not invited, but that many attendees hoped could join in on a roadmap to peace some time in the future.

The all-out war since President Vladimir Putin's invasion of Ukraine in February 2022 has killed or injured hundreds of thousands of people, unsettled world markets for goods like grain and fertilizer, driven millions from their homes and carved a wedge between the West -- which has sanctioned Moscow over the war -- and Russia, China and some other countries.

About 100 delegations, mostly Western countries but also some key developing nations, were on hand for the conference that was billed as a first step toward peace at a time when the warring countries are seemingly as far apart as ever.

The event included presidents and prime ministers from France, Germany, Britain, Japan, Poland, Argentina, Ecuador, Kenya and Somalia.

India, Mexico, Saudi Arabia, South Africa, Thailand and the United Arab Emirates -- which were represented by foreign ministers or lower-level envoys -- were among those that did not sign the final document, which focused on issues of nuclear safety, food security and the exchange of prisoners.

Brazil, an “observer” country, did not sign on but Turkey -- which has at times sought to act an intermediary between Russia and Ukraine -- did.

The final document said the UN Charter and “respect for territorial integrity and sovereignty … can and will serve as a basis for achieving a comprehensive, just and lasting peace in Ukraine.”

Viola Amherd, the Swiss president who hosted the event, told the final news conference the “great majority” of participants agreed to the final document, which “shows what diplomacy can achieve."

Ukrainian President Volodymyr Zelensky hailed the “first steps toward peace” at the meeting, and said the joint communique remains “open for accession by everyone who respects the UN Charter.”

Testifying to both war fatigue and other preoccupations that have emerged in recent months, only about half UN member countries took part. In March 2022, condemnation of Russia’s invasion led to passage of a non-binding resolution at the UN General Assembly by 141 countries calling for a halt to Moscow’s use of force and pullout of Russian troops.

In Switzerland, the challenge was to talk tough about Russia, but also open the door for it to join a peace initiative.

“Many countries ... wanted the involvement of representatives of the Russian Federation,” Zelensky told a final news conference. “At the same time, the majority of the countries do not want to shake hands with them (Russian leaders) ... so there are various opinions in the world.”

Ursula von der Leyen, the president of the European Union’s executive Commission, said the conference was rightly entitled “Path to Peace” because peace won’t be achieved in a single step.

“It was not a peace negotiation because Putin is not serious about ending the war. He is insisting on capitulation. He is insisting on ceding Ukrainian territory -- even territory that today is not occupied by him,” she said. “He is insisting on disarming Ukraine, leaving it vulnerable to future aggression. No country would ever accept these outrageous terms.”

Analysts suspected the two-day conference would have little concrete impact toward ending the war because Russia, was not invited. China, which did not attend, and Brazil have jointly sought to plot alternative routes toward peace.

The themes of nuclear safety, food security and prisoner exchanges featured in the final statement. Italian Prime Minister Giorgia Meloni said they amounted to “minimum conditions” for negotiations with Russia, alluding to how many other areas of disagreement between Kyiv and Moscow will be harder to overcome.

Qatar's prime minister, Sheikh Mohammed bin Abdulrahman Al Thani, said Saturday that his rich Gulf country hosted talks with both Ukrainian and Russian delegations on the reunification of Ukrainian children with their families that has so far resulted in 34 children being reunited.

The Ukrainian government believes that 19,546 children have been deported or forcibly displaced, and Russian Children’s Rights Commissioner Maria Lvova-Belova has previously confirmed that at least 2,000 were taken from Ukrainian orphanages.

Montenegro Prime Minister Milojko Spajic told the gathering Sunday: “As a father of three, I'm deeply concerned by thousands of Ukrainian kids forcibly transferred to Russia or Russia-occupied territories of Ukraine.”

“We all at this table need to do more so that children of Ukraine are back in Ukraine,” he added.

In Kyiv, at a regular demonstration by relatives of soldiers captured by Russia, the response to the Swiss gathering was muted.

“I would really like to believe that this (conference) will have an impact, but some very important countries did not sign the communique,” said Yana Shyrokyh, 56, whose army serviceman son has been in captivity since 2022. “I would really like them to find powerful levers of influence on Russia."

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