Why do anti-war activists eat Hershey's bars and M&M's?

Because they both are only around because of war. M&M's because of what candy Forrest Mars Sr. noticed soldiers fighting in the Spanish Civil War eating and Hershey's bars because the U.S. Army purchased 30 lbs blocks of chocolate during WWI. Now I know that's not a founding reason, but with out the sponsorship of the Army, how likely would have Hershey's survived?