The Islamic State is sending hit squads into Syrian refugee camps to kill Christians. The strategy is part of a larger commitment to wipe out Christianity, according to a former Islamic State jihadi, who was sent to a refugee camp but changed his mind about his mission.

Witnesses to the murders are afraid to speak out for fear they will be targeted next.

One aid worker, quoted by the Sunday Express, said, "They're like a mafia. People are even killed inside the camps, and the refugees are afraid to say if they saw somebody get killed. If you ask them, they'll say, 'I don't know, I was asleep'."

The jihadi squads are also kidnapping Christian girls and selling them into sex slavery.

"The last time I went inside a camp, I had a policeman with me,' said the aid worker. "The camps are dangerous because they have IS, Iraqi militias and Syrian militias. It's another place for gangs. They're killing inside the camps, and they're buying and selling ladies and even girls."

In September, Lebanese Education Minister Elias Bou Saab estimated 20,000 Islamic State radicals had infiltrated the Syrian refugees camps and were planning to get into Europe with the stream of refugees.

“My gut feeling is they [the Islamic State] are facilitating such an operation. To go to Europe and other places … From Turkey to Greece,” Saab said. “You may have, let’s say, 2% [of the 1.1 million] that could be radicals. That is more than enough. We have had that also with our camps here – you find 2-3% of them.”

Saab also noted that refugees from Syria were arriving that didn’t look like normal refugees. “They are all dressed with something unified, uniform, vests," he said.

Since 2003, 1,800 Christians have been butchered by Islamist terrorists with another 100,000 fleeing Mosul, Iraq when the Islamic State took over the city in June 2014.

Christians have been the target of Islamic-State affiliated attacks from the horrific Westgate Mall siege in Nairobi to Boko Haram’s ruthless campaign of death and destruction in Nigeria.

Most recently in Uganda, a Christian mother of eight was killed by Islamists angry at her husband for converting from Islam to Christianity. The murder came one month after the husband's brother was killed in a similar reprisal attack for converting.

Mamwikomba Mwanika was dragged out of her house and later found dead close by in a pool of blood.

Although religious freedom is guaranteed in Uganda, converts to Christianity in the predominately Muslim eastern part of the country have been subjected to extreme persecution including poisonings, beatings, gang rapes and killings.

Get a preview of Clarion Project’s upcoming film, Faithkeepers, about the violent persecution of Christians and other religious minorities in the Middle East. The film features exclusive footage and testimonials of Christians, Baha’i, Yazidis, Jews, and other minority refugees, and a historical context of the persecution in the region.