In one of the. many Ben Ten TV series

if I remember correctly

two alien species are fighting each other on the same planet

Kevin Levin who is of a third species sells guns to both sides in the war

Levin happens to sound like Levi

If you get a little Levin in a batch of bread dough it effects the whole thing

You only need one person that acts like a Kike to keep a war going and maximize the casaulties on both sides while simultaneously ruining the economies of both sides