BRUSSELS — Secretary of State John Kerry said on Tuesday he and Russian Foreign Minister Sergei Lavrov had agreed to look for ways to revive a Syrian peace plan, but admitted that doing so would be extremely difficult.
Kerry, speaking after talks with Lavrov and NATO colleagues in Brussels, also backed away from earlier comments suggesting he was calling for increased NATO contingency planning on Syria.
Kerry said he and Lavrov had discussed ways to revive a peace plan agreed in Geneva last June that called for a transitional government.
"We are both going to go back, we are going to explore those possibilities, and we are going to talk again about if any of those other avenues could conceivably be pursued," Kerry said.
He said that while there might be a difference of opinion between Russia and the United States about when and how Syrian President Bashar al-Assad might leave office, "I don't think there's a difference of opinion that his leaving may either be inevitable or necessary to be able to have a solution."
But, he stressed: "I would say to you that's it's a very difficult road. . . . No one should think there is an easy way to move forward on this."
Moscow has for months been calling for implementation of the Geneva Declaration agreed by world powers including Russia and the United States, but disagrees with Washington's assertion that it requires Assad to step down.
Lavrov said last week that pressing for Assad's removal would increase the threats posed by militant Islamist groups such as the rebel al-Nusra Front, which formally pledged allegiance this month to al-Qaida leader Ayman al-Zawahiri.
Lavrov told a news conference on Tuesday the Geneva agreement could "not be interpreted in various ways; it has no ambiguity."
"Everyday more people are killed. However I see a growing understanding of the urgency to go from calls for election to real actions. That is why I hope we will see concrete actions on everybody's side," he said.
Kerry said in a statement to a meeting of NATO ministers earlier that the alliance needed "to consider its role in the Syrian crisis, including how practically prepared it was to respond to a potential chemical weapons threat."
"We should also carefully and collectively consider how NATO is prepared to respond to protect its members from a Syrian threat, including any potential chemical weapons threat," he said, according to a copy of his prepared remarks provided by the State Department
At the news conference, Kerry, who is attending his first NATO ministerial as secretary of state, said he had not called for more planning.
"I didn't ask for additional planning. I think it might have been the secretary-general or somebody who commented that we may need to do some additional planning, but there is no specific request," he said. "What there was from me was a very clear statement about the threat of chemical weapons and the potential for chemical weapons, generically, to fall into bad hands.
"What I did suggest to everybody was that we therefore need to all be thinking about how we can get to the negotiating table to avoid an implosion of Syria, which would be the worst consequence," Kerry said.
NATO Secretary-General Anders Fogh Rasmussen told a news conference the alliance was "extremely concerned about the use of ballistic missiles in Syria and the possible use of chemical weapons."
He said the alliance was worried about the risk of the conflict spilling over Syria's borders and said the alliance was willing to defend Turkey. "We have all plans ready to ensure effective defense and protection of Turkey," he said.
NATO, a U.S.-led military alliance of 28 countries, has said repeatedly it has no intention of intervening militarily in the Syrian civil war, although it has sent Patriot missile batteries to Turkey to help defend the NATO member against possible attack from Syria.
At his news conference, Kerry also said Israeli Prime Minister Benjamin Netanyahu had not been able to confirm to him in a telephone call on Tuesday comments by the Israeli military's top intelligence analyst that Syrian government forces had used chemical weapons.
"I think it is fair for me to say that he was not in a position to confirm that in the conversation that I had," Kerry said. "I don't know yet what the facts are."
Kerry had been asked about comments by Brigadier-General Itai Brun, an Israeli intelligence analyst, at a Tel Aviv security conference that Syrian forces had used chemical weapons, probably nerve gas, in their fight against rebels.
President Barack Obama has called the use of chemical weapons a "red line" for the United States that would trigger unspecified U.S. action.
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