Explain how World War I was different from previous wars and how it was dealt with by the War Poets. Explain the psychological effect it had on a generation of young men.

Hi, im an italian student and my teacher gave me this homework. I have to write an essay around this question of 1200/1500 words explaining why World War I was different from previous wars and how it was dealt with by the War Poets. Explain the psychological effect it had on a generation of young men. The question is about these arguments because we are studying the War Poets this year in our literature course at school this years. I can send you some photos of my school book about the war poets
section so you can see which is our level of knowledge about these arguments because this is a homework and my english is excellent as yours cause Im an Italian college student of 18 years old so please write in correct english, but please not too grammatically articulated and complicated, because my teacher can understand that the work isnt done by me. Thank you