Jesus assures us that he gives us a peace that the world cannot give, to be reconciled to God. So it is good to wish for a peaceful life, and an end to strife and division, but it is most important to seek this kind of peace.
John 14:27-31
Peace I leave with you; my peace I give to you. I do not give to you as the world gives. Do not let your hearts be troubled, and do not let them be afraid. You heard me say to you, “I am going away, and I am coming to you.” If you loved me, you would rejoice that I am going to the Father, because the Father is greater than I. And now I have told you this before it occurs, so that when it does occur, you may believe. I will no longer talk much with you, for the ruler of this world is coming. He has no power over me; but I do as the Father has commanded me, so that the world may know that I love the Father. Rise, let us be on our way.
(New Revised Standard Version Bible: Anglicized Edition, copyright © 1989, 1995 National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved worldwide. http://nrsvbibles.org)