UN: More than 25,000 foreigners have joined ISIS

Are the reasons financial or religious fanaticism-induced? Whatever the cause, 25,000 foreigners have joined the ranks of ISIS, fighting alongside Jihadi John and the rest of the jihadists that perpetrate crimes against humanity on a daily basis.

According to a UN report, this is the largest number of foreign fighters in any modern conflict.

According to experts, these foreigners are arriving from 100 different countries across the globe.