This is easy. All you need is a Philips head screw driver. There are two screws at the bottom of the plastic lense.
Unscrew them and gently pull the entire assembly out. Then you can turn the bulb connectors on the inside to release the bulb and replace it. Sometime the connectors are tough or stuck, but they twist about 90 degrees and then release.
Then reassemble.
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.