On Monday Prime Minister David Cameron said, ‘This is not simply a humanitarian mission. We are determined to do what we can to help Iraq combat this new and very extreme form of terrorism.’  He spoke amid a series of dramatic developments on the ground that will fuel concerns about mission creep. British military planes are flying deeper into Iraq to capture surveillance footage of jihadist fighters which is being used to help Kurdish and Iraqi forces on the ground. Regular soldiers from the Yorkshire Regiment were in the Kurdish region last week – despite Downing Street’s assurances that there would be no ‘boots on the ground’. At least 1,000 Royal Marines are being deployed to Jordan in a long-planned joint military exercise with the US. The Defence Secretary said the mission has escalated beyond a humanitarian one. Read more: