We marched with the GLAMericans for Peace in the February 15, 2003 anti-war march. One of the slogans we chanted was "Dior Not War!"
Apparently John Galliano heard about that, or the phrase was born independently around the world in the last year and a half.

A model wears a turquoise sleeveless T-shirt reading 'Dior, Not War' by British fashion designer John Galliano for Dior's spring-summer 2005 ready-to-wear fashion collection, presented Tuesday, Oct. 5, 2004 in Paris. (AP Photo/Michel Euler)

CHRISTIAN DIOR Fitted corduroy "peace" jacket over a long jersey skirt with flowers at the hem. (Pierre Verdy/AGF/Getty Images)
B Glam
Wonderful Dahling!
Just a small correction - it was February 15, 2003 (not 2004) but you had it right when you said "year and a half"... thanks for the shout out!
b.
barry
Oops. I fixed the date.
rebecca
where can i buy this top?
Barry
Hi. No idea, sorry. It's by Dior, so I suppose you could contact them.
jackie
love the work .....=)