Carry on war can be a destructive and painful experience for both sides of the conflict, but there are numerous antonyms to this phrase that promote peace and cooperation. Some possible antonyms are to negotiate a settlement, compromise, seek arbitration, or engage in diplomacy. These actions are constructive, and they demonstrate a willingness to work towards a mutual understanding and finding common ground. Furthermore, peaceful actions can create a better future for everyone involved and improve future relationships between the conflicting parties. It is crucial to recognize that there is always an alternative to fighting, and peaceful solutions often have more benefits than violence.