Liberation of Khorramshahr: Iranians recapture of the port city of Khorramshahr from the Iraqis during the Iran–Iraq War.

The Second Battle of Khorramshahr, also known in Iran as the Liberation of Khorramshahr was the Iranian recapture of the city of Khorramshahr on 24 May 1982, during the Iran–Iraq War. The city had been captured by the Iraqis earlier in the war, on 26 October 1980, shortly after the Iraqi invasion of Iran. The successful retaking of the city was part of Iran's Operation Beit ol-Moqaddas. It is perceived as a turning point in the war; and the liberation of the city is annually celebrated in Iran on 24 May.

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.

Khorramshahr is a city in the Central District of Khorramshahr County, Khuzestan province, Iran, serving as capital of both the county and the district. It is also known in Arabic by the local ethnically Arab population as Al-Muhammarah.

Iraqis are the citizens and nationals of the Republic of Iraq. The majority of Iraqis are Arabs, with Kurds accounting for the largest ethnic minority, followed by Turkmen. Other ethnic groups from the country include Yazidis, Assyrians, Mandaeans, Armenians, and Persians. Approximately 95% of Iraqis adhere to Islam, with nearly 64% of this figure consisting of Shia Muslims and the remainder consisting of Sunni Muslims. The largest minority religion is Christianity at 1%, while other religions collectively represent as much as 4% of the Iraqi populace.