Iran has warned the United States against taking any military actions against it, the ISNA news agency said.
"The United States would suffer a more regrettable fate than that it met in Iraq and Afghanistan if it takes any action against Iran," Iranian Foreign Minister Manouchehr Mottaki pledged.
Mottaki's comments came in response to a statement by U.S. Joint Chiefs of Staff, Admiral Mike Mullen, that Washington had excluded a possible military strike on Iran over its nuclear program.
On Monday, Iranian President Mahmoud Ahmadinejad proposed to his U.S. counterpart Barack Obama "a man-to-man talk in the presence of journalists to discuss the best solution to the world's problems," RIA Novosti said.
Western powers suspect Iran of attempting to build nuclear weapons under the guise of civilian nuclear power generation. Iran denies the claims and says the program is aimed at the peaceful generation of civilian energy.
On June 9, the UN Security Council approved a fourth round of sanctions against Iran over its nuclear program, including tougher financial controls and an expanded arms embargo, as well as an asset ban on three dozen companies and a travel freeze on individuals.