At least 20 individuals are believed to have left Belgium to wage jihad in Iraq and Syria . ' Pieter Van Dam says would - be fighters help each other with travel advice through social media . Guy Van Vlierden , an investigative journalist with Belgian newspaper Het Laatste Nieuws who tracks jihadist networks , told CNN that Sharia4Belgium had disbanded because of prosecutions and the flow of members to Syria . ` NATO has made it clear it intends to send fighters to Europe , once western forces are ` ` . ''
At least 20 individuals are believed to have left Belgium to wage jihad in Iraq and Syria . ' Pieter Van Dam says would - be fighters help each other with travel advice through social media . NATO has made it clear it intends to send fighters to Europe , once western forces are ` ` . ''