'40 Years Of U.S. Defeats': Iranians Mark Anniversary Of 1979 Islamic Revolution

Members of the Islamic Revolutionary Guards Corps raise their fists while shouting slogans on Azadi (Freedom) Square in Tehran.

Iranians burn U.S. and Israeli flags in Tehran.

Iranian President Hassan Rohani addresses tens of thousands of people on Azadi (Freedom) Square.

In his address, Rohani said the "enemy will never reach its evil objectives," vowing that Iran will defeat U.S. sanctions.

An Iranian holds a poster showing Supreme Leader Ayatollah Ali Khamenei with a small portrait in the corner showing Islamic Revolution founder Ayatollah Ruhollah Khomeini.

Iranians walk past a missile during a rally in Tehran. Banners held by marchers or hung in the streets bore slogans including "Death to America," "Death to Israel," and "40 years of challenge, 40 years of U.S. defeats."

School students wave national flags as Islamic Revolutionary Guards Corps members arrive in Azadi (Freedom) Square.

Female students wave national flags on Azadi (Freedom) Square.