"Blessed are the peacemakers, for they will be called children of God."
--Matthew 5:9

I'm reading the book Thirteen Days in September, which is about 1978 Camp David Accords. From what I've read, peacemakers seem to have four common characteristics (either individually or collectively):

Imaginative. You have to be able to imagine what peace looks like.
Adventurous. You have to be willing to sail into uncharted waters.
Trusting. You have to trust that other people share your desire for peace, even if you may differ on the details of what peace looks like.
Energitic. You will need the energy to make your vision a reality.

As long as somebody somewhere can imagine peace, I'm confident that we will achieve peace. I just need to be patient and persevere.