Back to the basis of the thread. Emotionally, I tend to think she only wanted to come back when things went wrong, so tough. Intellectually, I have concerns about whether we would see this differently if it was a Christian 15 year old groomed by a cult. I also have huge concerns with the current Governmnet's desire to remove ECHR scrutiny of its decisions. What people forget is once it has been made precedent to remove citizenship ( possibly the wrong word, don't jump on it if it is!) from someone born and bred in the UK, they could do the same to any of us if they wished.
Re the off tangent stuff, I always thought UK forces had a law making any current military personnel fighting for any foreign power a court martial offence? There were several cases back in the 70's when mercenaries were all the rage.