article_snippet.sent: ISIS are known to use children in videos like this one, where children are being trained as fighters .
article_snippet.sent: Sickening: In more horrific videos, ISIS have claimed to be using children as executioners .
article_snippet.sent: One of the most horrifying videos released by the Islamists showed a young boy seeming to execute a so-called spy.
article_snippet.sent: the Islamists have also released a video of dozens of 'child soldiers' from Kazakhstan, apparently being trained to fight against ISIS enemies.