Australia joined the walk out led by the United States and member states of the European Union on Thursday as Iranian President Mahmoud Ahmadinejad blithely accused 'western powers' of arrogance and military adventurism during his United Nations General Assembly speech.

The walk out replicated the scenario last year also at the U.N. General Assembly, in which Ahmadinejad suggested that America was the one responsible for the 9/11 terror attack that it then utilised as a strong basis for its 'War on Terror' campaign and the continued existence of Israel.

Previously, the Iranian president had declared that the World War II Holocaust, which killed millions of Jews arrested and detained by Nazi Germany, was a hoax, prompting Israel to regularly boycott his UN addresses, including yesterday's tirades.

Apart from using the U.N. General Assembly as platform to criticise Iran's foes, mainly Israel and the U.S., Ahmadinejad regularly spewed rhetoric that painted America and certain European countries as the real architects behind global sanctions against Iran.

The U.N. Security Council has slapped the Islamic Republic with series of sanctions stemming from the country's refusal to abandon its uranium enrichment program, as it insisted its right to develop nuclear technology for peaceful purposes.

However, intelligence reports and assessments published by the U.N. have suggested that Iran's nuclear program may be gearing towards the manufacture of long-ranges missiles capable of carrying nuclear payloads.

Yet in an apparent attempt to deflect global suspicion of its nuclear agenda, Ahmadinejad blamed what he called 'the arrogant powers' for the ills, miseries and poverty wracking many nations.

"It is as lucid as daylight that the same slave masters and colonial powers that once instigated the two world wars have caused widespread misery and disorder with far-reaching effects across the globe," the Iranian leader was quoted by The Associated Press as saying during his Thursday address.

He also called on world, specifically the U.S., to accept the fact that Iran is destined to play a key role in the "shared and collective management of the world in order to put an end to the present disorders, tyranny and discriminations worldwide."

However, many of those who caught Ahmadinejad's speech declared that his message should be taken with a grain of salt as it came from a person who presided over the violent crackdown of Iranian protesters peacefully demanding for reforms earlier this year.

"While President Ahmadinejad is lecturing the world from the U.N. podium ... dissent is still being crushed ruthlessly in Iran and basic rights demanded by millions in the Arab world are brutally denied to Iranians who are demanding the same," Human Rights Watch's U.N. Director Philippe Bolopion told AP.

Also, Mark Kornblau, spokesman for the U.S. Mission to the United Nations, scored the Iranian president for his stubbornness in facing reality and implement measures that would resolve his country's domestic issues.

"Mr. Ahmadinejad had a chance to address his own people's aspirations for freedom and dignity, but instead he again turned to abhorrent anti-Semitic slurs and despicable conspiracy theories," Kornblau was reported by AP as saying.