After failing to agree on how to spilt the energy-rich Caspian Sea at a summit held in Turkmenistan in 2002, Iran, Russia, Kazakhstan, Azerbaijan and Turkmenistan made the first step to reaching that agreement as their presidents have signed a declaration which stipulates that they will not allow the US or its allies to use their territory for launching an attack on Iran.

The summit took place in Iran’s capital, Tehran, and the presidents of all the four countries were present and agreed that they will not allow the territory of their countries to be used by a third for attacks under any circumstances.

The Tehran summit came on the background of increasing pressure from the United States on Iran. America is currently making efforts to tighten international sanctions against the Islamic Republic over its uranium enrichment. According to the Bush administration, the uranium enrichment is just a cover used by the Iranian to hide their real intentions of building weapons of mass destruction.

Iran has firmly denied that claim.

President Putin met separately with President Mahmoud Ahmadinejad today to talk about
Iran’s nuclear program. This issue is also in the middle of the tense relations between the U.S. and Russia.

Russia, which holds a veto in the United Nations Security Council, is currently building an atomic power plant in southwest Iran and underlined the fact that there's no evidence the Middle Eastern country is attempting to build a atomic bomb.

President Putin, using a KGB-style talking, warned the US against the use of force against Iran.

"We should not even think of making use of force in this region," Mr Putin said during the Tehran summit.

This though-guy statement followed a similar one released last week when he said: "We have no objective evidence to claim that Iran is pursuing nuclear weapons, which makes us believe the country has no such plans."