This begins on a personal level. My partner and I have made a commitment to study/learn about communication skills by making time once a month to discuss material for the year 2024. We are currently reading a book on communication called, Nonviolent Communication: A Language of Life: Life-Changing Tools for Healthy Relationships by Marshall B. Roseberg. We each fall into old patterns occasionally, and we are assisting each other in doing the necessary personal work.
The only sure way to create peace is one person at a time, each being willing to change themselves. It does require taking a long-term approach, but a more lasting peace requires such an effort. As long as we are willing to change, it is quite possible.