Tehran: Iran is all set to deliver a "punch" on Friday, which Supreme leader Ayatollah Ali Khamenei had earlier this week claimed would stun world powers.
Today is the 31st anniversary of the Islamic revolution.
Addressing a gathering of air force personnel on Monday, Khamenei had said, “The Iranian nation, with its unity and God`s grace, will punch the arrogance (Western powers) on the 22nd of Bahman (February 11) in a way that will leave them stunned."
He told the air force personnel the "most important aim of the sedition after the election was to create a rift within the Iranian nation, but it was unable to do so and our nation`s unity remained a thorn in its eyes."
Khamenei is also Iran`s Commander-In-Chief.
The country`s top cleric was marking the occasion when Iran`s air force gave its support to revolutionary leader Ayatollah Ruhollah Khomeini, a key event which led to the toppling of the US-backed shah on February 11, 1979.
This year`s anniversary is also expected to become a flashpoint between security forces and supporters of opposition leaders Mir Hossein Mousavi and Mehdi Karroubi, who charge that the June re-election of President Mahmoud Ahmadinejad was rigged.
Mousavi has already renewed his call for demonstrations on the February 11 anniversary.
Just over a week ago, he and Karroubi had implicitly called for a gathering of their supporters.
"The 22nd of Bahman is upon us, truly it should be called the day of gathering," Mousavi had said on his Kaleme.org website on Monday.
"I feel we have to participate while maintaining the collective spirit as well as our identity and leave an impression," Mousavi said.
"Anger and bitterness should not take our control away.”
"The clerics should know that since imprisonment, beatings, and other confrontational methods are done in the name of Islam and the Islamic regime, it is hurting Islam and we all should try to stop," he added.
Anti-government protests were first triggered after the June 12 Presidential Election won by Ahmadinejad.