You understand their meanings. If you don't then please use wikipedia or something similar. I'm not a teacher I just want to have some sensible debate, not educate.
Please show me where I said anything was under threat. Those are your words I am afraid, typically you have misread me to start some kind of argument I guess. I only mentioned that a national identity grows and changes with time. Did I say it was good or bad? Tell me. Also, surely you don't disagree?
Why do you question others and not make whatever point is inside your head? What do you actually want to say about this topic? Come on, any opinions?