Oracle has a three part article detailing the changes: Introducing the Java EE 6 Platform: Part 1.
I know it's kind of nitpicky but the enterprise editions dropped the "2" from their acronyms sometime ago, its JEE 5 / JEE 6 now. For differences between the two, its easy enough to simply look at the specs: JEE 6 jcp.org/en/jsr/detail?id=316 JEE 5 jcp.org/en/jsr/detail?id=244 Honestly some of the major things that they have added have been available in Spring for quite some time dependency injection and bean validation.
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.