Iran's leaders angrily responded to the appointment of US President Donald Trump to his Revolutionary Guards Corps (IRGC) as a foreign terrorist organization.
This is the first time the US has named the military of another country in this way. President Hassan Rouhani said the United States is "a leader in world terrorism".
The tension of Washington-Tehran has grown since Mr Trump has withdrawn the United States from the international nuclear pact to Iran.
- Profile: Iranian Revolutionary Guard
The Government has taken appropriate actions against the US movement, calling the US Central Command (Centcom) a terrorist organization, and the US government sponsoring terror.
Centcom is the Pentagon wing that controls Washington's security interests in the central part of the world map, especially Afghanistan, Iraq, Iran, Pakistan and Syria.
What do the leaders of Iran say?
President Rukhani condemned the American step in a broadcast broadcast live on state television. he asked. "You are a leader in world terrorism."
"This mistake of uniting Iranians and Guards will grow ever more popular in Iran and in the region."
"America used terrorists as an instrument in the region, and the Guards
Supreme Leader Ayatollah Ali Khamenei stated that The IRGC has faced enemies in the country and abroad, reports state television.
They were "at the forefront of the opposition of the enemies of our revolution and have always protected the country … America could not block our achievements."
Why did the US do it?
Marking the Guard as a terrorist organization will allow the United States to impose additional sanctions, especially as it relates to the business sector Given the participation of the IRGC in the Iranian economy.
A number of IRGC and affiliated organizations have already suffered US sanctions for alleged proliferation, support, and human rights violations
t Monday said: "This unprecedented step, headed by the State Department, recognizes the reality that Iran is not Only the state sponsor of terrorism, but IRGC is actively involved, sponsors and advocates terrorism as a tool of public administration.
adding that this step was intended to" significantly increase the scope and scale "
" If you work with the IRGC, you will finance terrorism, "Mr Trump said. 1
US Secretary of State Mike Pompeo and National Security Advisor John Bolton, both Iranian hawks, advocated this decision.
The BBC's Correspondent Jonathan Marcus says that few Western commentators disagree with the fact that the IRGC is responsible for all ts destructive activities in the region and beyond.
But he adds that many – including, it seems, some government officials and the Pentagon – are afraid that this move may simply be damaging as it may encourage the IRGC or its trustees to act against US personnel or other purposes in the field where they can be vulnerable, for example, in Iraq.
What is IRRC?
The most elite military part of Iran, IRGC was created shortly after the Iranian revolution of 1979 to protect the Islamic system of the country and to counterbalance the regular armed forces.
has since become the main military, political and economic force in Iran, with close ties with the Supreme Leader, Ayatollah Ali Khamenei, and many other high-ranking figures who have come down from its ranks. has its own ground forces, naval forces and air forces, and also controls strategic weapons of Iran, including ballistic missiles.
The IRGC influences other countries in the Middle East by providing money, weapons, technology, training and advice to Allied governments and armed groups through its shadow operations abroad abroad – Cuds (Jerusalem).