Following the beheading of two women in Syria that was previously covered by HNGN, the terror group has once more spread their reign of terror, this time showing that even women and children are not safe from the Islamic State.

Sheikh Naim el-Kaoud, the man who leads the al-Bounmar tribes in Anbar, has described the recent execution of five women and their sons in Anbar province. They were executed through immolation because the women showed resistance when ISIS attempted to recruit their young sons to the terror group, reports The Clarion Project.

"Gangs from the terrorist organization ISIS burned five women from Heet (50 km west of Ramadi) for refusing to give over their sons to the terror group," the sheikh said, according to Al Bawaba EG.

Ryan Mauro, a national security analyst for the Clarion Project, believes that ISIS has found reason behind their actions due to their declaration of jihad. "ISIS could argue that jihad -- meaning joining ISIS -- is obligatory of all Muslims, so the civilians' refusal qualifies them for execution as apostates," he said, adding acts like these are also effective for ISIS because it reminds (local Muslims) of the price they'll pay for standing up to the group."

Mauro further believes that as the world should be ready to witness more acts such as this from ISIS in the near future, as international military operations have started to clamp down on the group, according to Fox News. "The story from the tribal leader shows that burning civilians alive and ripping sons away from mothers is now accepted practice among ISIS members," he said.

ISIS justified the burning of [captured] Jordanian pilot [Moath al-Kasasbeh in January] by arguing that Islam justifies the immolation of those who burn Muslims, such as by dropping bombs," he added.

Scott Stewart, vice president of tactical analysis at Stratfor, believes that ISIS' increasing aggression is due to the fact that the insurgent group has started to lose ground and manpower.

As the Islamic State is getting locked down, they are squeezing the local population, not just for more fighters, but for resources and money for funding," he said, adding "And that's going to build resentment among the people in the region eventually."