In Iran, more than half of the population is under the age of 25.The Islamic revolution led by Ayatollah Khomeini in Iran coincided with the Russian invasion of Afghanistan in 1979.
invasion of Afghanistan ushered in a fresh chapter in relations between Iran and Afghanistan.
While the Iranian leaders welcomed the fall of the Taliban, they also saw the presence of American troops in neighboring Afghanistan as a national security threat.
The Hazara, a Persian-speaking ethnic group which is concentrated mainly in central Afghanistan, with major communities present in western Afghanistan, Iran, and Pakistan, constitutes a large portion of Afghanistan’s Shia.
The Hazara make up roughly nine percent of Afghanistan’s population or 2.9 million people. Fifty-eight percent of Iranians or 38.2 million speak Persian, while half of all Afghans or 16.3 million speak one of several dialects of Persian (Dari).
Iran and Afghanistan share several religious, linguistic, and ethnic groups that create cultural overlaps between the two countries.