Can you plzz helpp!!!!?

i have to do an essay!!! the question is "ize Mark Twains veiw on war and do they still seem relevant today" im not really sure how to do an essay. can you help me on like the intro ,body & conclusion? i dont want you to do it 4 e i just want help on how to organize the essay. Also, if u find any good website w/ good information that would be soooo helpfull!!! thanks sooo much!!!