The difference between a past participle and the past tense is that a past participle is the word that makes a sentence past tense. It is the form of a verb that you use to make the sentence past tense. For example, in the sentence, "i had a cookie," the word "had" is the past participle.
It is what makes this sentence in past tense. If I had used the present tense form, rather than the past participle, it would read "I have a cookie," making it present tense instead of past tense. More.
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.