It has an estimated 125,000-strong military with army, navy and air units, and commands the Basij religious militia often used in crackdowns.

Source: https://cyprus-mail.com/2023/01/23/eu-agrees-new-iran-sanctions-wont-label-guards-terrorist-yet/

The Guards oversee the volunteer Basij paramilitary force, which has been deployed against protests since mid-September triggered by the death of Mahsa Amini, 22, after her arrest for allegedly violating Iran’s dress code for women.

Source: https://guardian.ng/news/world/iran-guards-warn-eu-terror-label-would-be-mistake/