Speaking at the World Economic Forum at a Swiss ski resort in Davos, Kissinger said, "People who have advanced their view will have to come to a determination about how to react or about the consequences of non-reaction," he said.

"I believe this point will be reached within a very foreseeable future."

Also at Davos, Agence France Presse reports that President Shimon Peres said, "There will be more attempts to try and negotiate, but there will always be in the horizon a military option, because if the Iranians think it's only economic and political, they won't pay attention."