I always think of Prof. McGonagall when I see the name of the wise goddess.
Would the literal translation be something like "minerva wears a weapon"?
"Minerva carries war" probably
Minerva carries out war. (or conduct are synonyms for wage)
Carry out is literally what German does. Minerva trägt einen Krieg aus. (although I guess Minerva führt (einen) Krieg would be the more usual wording)