The International Conference to Review the Global Vision of the Holocaust is opened in Tehran, Iran, by then-president Mahmoud Ahmadinejad; nations such as Israel and the United States express concern.

The "International Conference to Review the Global Vision of the Holocaust" was a two-day meeting in Tehran, Iran, that began on 11 December 2006. It was hosted by the Iranian government of Mahmoud Ahmadinejad, whose foreign minister Manouchehr Mottaki stated that it had been organized "neither to deny nor prove the Holocaust... [but] to provide an appropriate scientific atmosphere for scholars to offer their opinions in freedom about a historical issue." The meeting took place shortly after Iran's International Holocaust Cartoon Competition, which was sponsored by Tehran's government-owned newspaper Hamshahri. Most of the invitees were far-right activists, several of whom had faced legal charges or imprisonment in Western countries for their advocacy of neo-Nazism, Holocaust denial, or Islamic extremism.

Tehran is the capital and largest city of Iran. It is also the capital of Tehran province and the administrative center for Tehran County and its Central District. With a population of around 9.8 million in the city, and 16.8 million in the metropolitan area, Tehran is the most populous city in Iran and Western Asia, the second-largest metropolitan area in the Middle East after Cairo, and the 24th-most-populous metropolitan area in the world. Greater Tehran includes several municipalities, including Karaj, Eslamshahr, Shahriar, Qods, Malard, Golestan, Pakdasht, Qarchak, Nasimshahr, Parand, Pardis, Andisheh and Fardis.

Iran, officially the Islamic Republic of Iran (IRI) and also known as Persia, is a country in West Asia. It borders Iraq to the west, Turkey, Azerbaijan, and Armenia to the northwest, the Caspian Sea to the north, Turkmenistan to the northeast, Afghanistan to the east, Pakistan to the southeast, and the Gulf of Oman and the Persian Gulf to the south. Iran ranks 17th globally in both geographic size and population and is the sixth-largest country in Asia. Iran is divided into five regions with 31 provinces. Tehran is the nation's capital, largest city, and financial center.