About once a year, I suggest this prayer of St Francis of Assisi as our Prayer for Peace for the week.  If you would like, here is a version on You Tube which you may like to listen to the prayer sung below.  I have recommended this version before.

Lord, make me an instrument of your peace.
Where there is hatred, let me sow love;
where there is injury, pardon;
where there is error, the truth;
where there is doubt, the faith;
where there is despair, hope;
where there is darkness, light;
and where there is sadness, joy.

O Divine Master, grant that I may not so much seek
to be consoled, as to console;
to be understood, as to understand;
to be loved, as to love.
For it is in giving that we receive
it is in pardoning that we are pardoned;
and it is in dying that we are born to eternal life.

Amen.