By Michael Oleaga / ( | First Posted: Sep 24, 2012 10:23 AM EDT

The General Assembly Hall of the United Nations in New York. (Photo : Michael Oleaga)

The island of Manhattan will once again harbor world leaders for the 67th regular session of the United Nations' (UN) General Assembly (GA).

According to the UN, the GA "is the main deliberative organ of the UN. Decisions on important questions, such as those on peace and security, admission of new members and budgetary matters, require a two-thirds majority. Decisions on other questions are by simple majority."

"This year's General Debate will be among our busiest ever. This reflects the tumultuous time in which we live -- a time of turmoil and transition," said UN Secretary-General Ban Ki-moon, who will speak on Tuesday, adding that the theme of this year's debate is "Adjustment or settlement of international disputes or situations by peaceful means."

Over 120 presidents and prime ministers will discuss, or attempt to avoid, ongoing conflicts in the world such as the unrest in Syria, the situation in Israel, Palestine, and Iran, the progress in Iraq, the Arab Spring, and poverty in several African countries.

World leaders, including US President Barack Obama, Israeli Prime Minister Benjamin Netanyahu, Iranian President Mahmoud Ahmadinejad, Palestinian leader Mahmoud Abbas, and more, will gather starting Tuesday, Sept. 25, but many are planning to arrive Monday.

For President Obama, his speech on Tuesday will have an extra focus from fellow Americans and opponents from the Romney campaign as his speech will indicate his stance on foreign policy and the events following US Ambassador Christopher Stevens' death two weeks ago.

Egypt's newly elected president Mohammad Morsi will address the Assembly for the first time, following the revolution in the country. His speech will occur on Wednesday.

Iran's Ahmadinejad will speak on Wednesday for the final time before ending his term as president next year.

Israeli Prime Minister Netanyahu stated last week he plans to "tell the nations of the world in a clear voice the truth about the terror regime of Iran which represents the greatest threat to world peace". He will speak on Thursday.

What makes the GA unique is how the countries get along in one room. The General Assembly Hall has seen delegates walk out of the room following remarks from other world leaders, has seen long speeches such as from former Libyan President Muammar Gaddafi delivering a speech that took over an hour which ridiculed the Security Council, former Soviet Union leader Nikita Khrushchev banging his shoe during his speech (below), and Ahmadinejad calling the Sept. 11 terrorist attacks as "an inside job," cause the US delegation to leave during the speech.

The General Debate ends Oct. 1.To watch the webcast of the General Assembly's General Debate, click here (if not viewable below).

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