Tensions have flared in recent days amid reports Israel is planning for a possible strike against Iran's nuclear facilities, sending crude oil prices near record highs.
But Iranian Foreign Minister Manouchehr Mottaki said he did not think the United States or Israel would attack Iran at least through January, when the Bush administration ends.
Mottaki also said he saw a "new sort of atmosphere" in nuclear talks with six big powers after a recent approach to Tehran through the European Union.
President George W. Bush reiterated that diplomacy was the first option to address Iran's nuclear program, but he repeated that Washington had all options on the table.
At the Pentagon, Adm. Mike Mullen, chairman of the Joint Chiefs of Staff, said he believed Tehran was "still on a path to get to nuclear weapons" but stressed he wanted to see the dispute with Iran resolved through peaceful means.
"I'm convinced that the solution still lies in using other elements of national power to change Iranian behaviour, including diplomatic, financial and international pressure," said Mullen, recently returned from a two-day trip to Israel.
"There is a need for better clarity, even dialogue at some level," he said.
U.S. military officials played down concerns that Tehran would close the Strait of Hormuz, a key oil shipping route, in any military confrontation with Israel or the United States.
Speaking through an interpreter, Mottaki told reporters that "constructive statements and approaches" and an earlier proposal by Iran had "paved the way for creating a new sort of atmosphere."
On behalf of the United States, Britain, France, Germany, Russia and China, EU foreign policy chief Javier Solana handed over an offer on June 14 of trade and other benefits designed to help persuade Tehran to curb its nuclear work.
"Very soon I will respond to the letter given to me by the six foreign ministers," Mottaki said at the United Nations.
U.S. MILITARY BACKS DIALOGUE
