"Cut off the head of the snake", Saudi king urged U.S. to attack Iran.

Re: Wikileaks exposé makes it clear: Everybody hates Iran

“Peace be with you” is a saying that should (and hopefully will) receive a response from any peace loving person anywhere in the world. That person does not have to be a Muslim, IMHO.

So I would say that due its simplicity and powerfulness, that phrase has transcended religion.

Assalam alaykum!