As thousands marched on Saturday to mark the anniversary of the 1979 seizure of the U.S. embassy, Iran put a ballistic missile on display. "And when a missile is tested thousands of kilometers away, after [issuing empty] threats, all their president does is put out a tweet", he said.
A crowd chanted "Down with the US" and "Death to Israel" during the anniversary celebration.
The date marks three significant events in the country's history that portray the U.S.in a negative light: the arrest of future Islamic Republic founder Ayatollah Ruhollah Khomeini by the USA - and United Kingdom -installed Shah Mohammad Reza Pahlavi in 1964; the outbreak of bloody clashes between students and the shah's forces in 1978; and the storming of the US embassy in 1979 that began a 444-day hostage crisis. Khamenei rallied students against President Donald Trump's decision to decertify the 2015 nuclear treaty and his attempts to depict Iran as a supporter of terrorism.
The occasion this year followed the aggressive remarks of the U.S. President Donald Trump against Iran last month, who accused Iran and its Islamic Revolution Guards Corps of agitating regional instability and exporting violence.
Hundreds of thousands of Iranian people, mostly school and university students, staged demonstrations on Saturday morning all over the country to express their opposition to the arrogant policies and attitudes of the enemies, particularly the US.
Mr Shamkhani, alluding to Mr Trump's threats against North Korea, said even USA allies know that Mr Trump "has no power to realise his bluffs, against Iran, too". The U.S. cut its diplomatic relations with Iran after the embassy takeover and has had no diplomatic relations since.
Iranians marched in the streets of Tehran to mark the anniversary of the 1979 takeover of the U.S. embassy.
A recent survey conducted by the Afkar Iranian Center, a public opinion polling institute, indicates that 94.5 percent of Iranians do not trust the United States.
In fact, Russian President Vladimir Putin visited Tehran on Wednesday, where Khamenei told him that Tehran and Moscow must step up cooperation to isolate the United States and help defuse conflict in the Middle East. Iran and Russia both fight on the side of Syrian President Bashar al Assad. State TV said similar celebrations were being held in other Iranian cities and towns.