The 45th anniversary of the victory of the Islamic Revolution refers to the celebration of the 45th year since the success of the 1979 Islamic Revolution in Iran. The Islamic Revolution, also known as the Iranian Revolution, was a popular uprising that led to the overthrow of the Pahlavi dynasty and the establishment of the Islamic Republic of Iran.

The revolution began in January 1978 with widespread protests against the authoritarian rule of Shah Mohammad Reza Pahlavi. The protests were fueled by various factors, including economic inequality, political repression, and social and cultural grievances. The opposition to the Shah's regime gained momentum over the following months, and by early 1979, the revolution had reached its peak.

On February 11, 1979, the Shah left Iran, and Imam Ayatollah Ruhollah Khomeini, the leader of the revolutionary movement, returned from exile in France. Imam Khomeini's arrival marked the beginning of a new era in Iran, as the country transitioned from a monarchy to an Islamic republic.

The 45th anniversary of the Islamic Revolution is a significant milestone in Iran's history. It is an occasion to commemorate the achievements and challenges of the past four and a half decades, and to reflect on the future of the Islamic Republic.