Tags can be hidden inside comments, cdata, script and other places, and/or it could just be invalid. If you say its not markup of any kind, you could do something like this.
You're trying to parse HTML with regular expressions. Regular expressions are inadequate for parsing HTML safely. What you need is an HTML parser.
Take a look at PHP's DOM module.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.