A Javonesian army corps, this brigade sized branch is further split into 5 groups of around 500-2,000 soldiers each. These specialists are trained for numerous tasks like parachuting, jungle warfare, unconventional warfare and counter insurgency. With 9 special training schools they learn the arts of spec ops for around 12 intense months.
The picture above is Sat-81 "Macan Dahan" Counter-Insurgent Regiment, a twin battalion of the most elite Kopassus members. Creds to @kingofthehill13 for the cr24 and @GTRage365 for the g3.