A rare and shocking look how ISIS fighters are infiltrating Afghanistan and taking over every aspect of local life. They even run the local schools. Children as young as three are learning about the self-proclaimed Islamic State, machine guns, grenades and jihad. The Islamic State Of Iraq And Levant, also known as ISIL or ISIS is not new to us. Nor are their teachings which is an extremist interpretation of their religion, one that believes in the concept of Jihad (religious war), Kafirs (infidels) and promotes and encourages violence – all in the name of religion. Video uploaded by FRONTLINE PBS | Official shared a saddening and yet terrifying video of an ‘ISIS school’ that shows children as young as 3 being taught the usage of Russian Kalashnikovs, TT guns and hand grenades. Have a look of the video: