It has been accused of playing a role in arming Shia militia in Iraq and threatened with being labelled a "terrorist organisation" by the US, but Iran's Revolutionary Guard - the country's elite military force - believes that domestic security threats represent a much greater danger to the country than the international crisis surrounding its nuclear programme.
Mohammad-Ali Jafari, Islamic Revolutionary Guard Corps commander, said shortly after he took his new job in September: "The main mission of the guards is currently fighting domestic threats and in case there is a foreign threat we will join the [conventional] army."
