Huh? Do you want me to explain why it's wrong to start a war and still claim to be friends?
I don't really see anything wrong with that . . . but it'd take a pretty big sucker to believe it.
But hey, if you can convince them. . . .
Note: In case it is not clear, I think it is obvious that if you are at war with someone, you aren't their friend, basically by definition. But when have the facts stopped people from claiming otherwise?