I notice that sandy has chosen not to include a link to his thread only one from the negative side, well let me oblige, one from the Daily Mail (others are similar), and one from the Guardian which chose to call them ' mercenaries' which Gromit soon locked on to.
/// On the website of the security firm they founded, Mr Hughes and Mr Read said they were motivated by ‘conscience’, not money, to travel to the warzone ‘to assist innocent people in the face of terror from IS’. ///
/// Insisting they were volunteer fighters, not guns for hire, the ex-servicemen said they would ‘not do nothing while innocent men, women and children are tortured and murdered by Islamic State while the international community stands by and observes from the luxury of their boardrooms or their tanks on the hill’. ///
They are not mercenaries since they say they are not being paid, are they any different to those who go out to foreign climes offering aid so as to help people who are in danger and distress?
http://www.dailymail.co.uk/news/article-2846023/Former-British-infantryman-joins-Kurdish-fighters-Syria-defending-beleaguered-town-against-ISIS.html
http://www.theguardian.com/world/2014/nov/22/uk-mercenaries-fighting-islamic-state-terrorist-syria