TEHRAN, IRAN - FEBRUARY 11: People attend a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: People attend a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: People attend a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students attend a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students attend a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

İran Devrimi'nin 40'ıncı yıl dönümü dolayısıyla başkent Tahran'daki Azadi Meydanı'nda kutlama töreni düzenlendi. Törene katılan öğrenciler, İran bayraklarını taşıdı. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students hold Iranian flags during a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students hold Iranian flags during a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students hold Iranian flags during a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students hold Iranian flags during a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students hold Iranian flags during a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students hold Iranian flags during a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Students hold Iranian flags during a rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: The rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: The rally marking the 40th anniversary of Iran's Islamic Revolution held at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani attends a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani attends a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )

TEHRAN, IRAN - FEBRUARY 11: Iranian President Hassan Rouhani makes a speech during a rally marking the 40th anniversary of Iran's Islamic Revolution at Azadi Square in Tehran, Iran on February 11, 2019. ( Fatemeh Bahrami - Anadolu Agency )