And the answer is...

Ibis, redibis, non morieris in bello.
(Literal translation):
Ibis = You will go
Redibis = you will return
non = not
morieris = you will die
in bello = in war.

Now ladies and gents, place your commas...

Where obviously:
redibis non = you won't come back
but
non morieris = you won't die

Sorry for the delay + greetings to all.

Glad we got all that cleared up.