of course if we didnt have the revolutinary war you would be singing God save the Queen If we didn't have the civil war we could all have a few slaves. If we didnt have WW2 Hitler could have killed all the Jews, Poles, THose who were insane, handicaped, Gypsy Russians. NOt bad for the master race. and depending on your ethnicity or European background none of you would be alive now Get a life