Here in the West this is still hypothetical. It may not be hypothetical much longer. But for Christians in the Mid East, Africa, Europe, Asia or the UK, it's real.
We know from the Bible some of us will die for God. Especially in the end times.
I think we will be going to war against Isis in a few months, or less. Now suppose you are a Christian but somehow Isis has captured you. Or it might be a situation where they have you and your family. At some point they tell you that unless you convert to their brand of Islam, you will be killed. (please keep in mind the way terrorists practice Islam is not the same as the the other 2/3 of Muslims practice it. To lump all Muslims together is the same as saying the JW's or LDS forms of Christianity is the same as most of us. And it's not)
I've been thinking about this for several weeks. My impulse is to say no and let them kill me. And for me, a 62 yr old man in very poor health without a family that's probably the right answer.
However, if you lie, say you will convert, but in your heart you didn't, you may then get a chance to save your family, escape, or at least wait until you can get a weapon and take as many of them with you as you can. That's what I would have done if I was young and my health was decent, so I could fire an Ak-47, an Uzi, or even a good shot gun. If you happen to be a captured soldier, or pilot, then this is certainly what you should do. As far as I'm concerned this is war, even if Obama never says it. Remember, you're lying, when and if you escape you're still going to practice Christianity.