The phrase "taking up arms" refers to the act of arming oneself for conflict or war. Antonyms for this phrase include peaceful resolution, compromise, negotiation, and diplomacy. Rather than engaging in violent behavior, individuals can opt to settle disputes in a non-violent manner through dialogue and communication. Examples of this include mediation, arbitration, and collaboration. Another antonym for "taking up arms" is disarmament, where weapons are removed and destroyed in order to promote peace and security. In times of conflict, it is important to explore alternative solutions instead of resorting to violence as a means of resolving differences.