Today is the day that the General of The Salvation Army has declared a global day of prayer for peace. War is a major cause of global poverty and it's effects are felt most intensely by women and children. Jesus had a bunch of stuff to say and social reformers through-out history have also stood for radical change.
One of those reformers is young but has a great take on the early church's resistance to fight for the state, in honor of a much higher goal (allegiance to Christ). It's worth checking out Jesus for President (has a strong American perspective - but is still important).
Another brand new book - a study on Gandhi's methods regarding non-violence and the effectiveness of that route of change in the world is also worth a peek. Gandhi and Beyond

SONG: Jesus Christ is Waiting

Jesus Christ is waiting, waiting in the streets;
no one is his neighbour, all alone he eats.
Listen, Lord Jesus, I am lonely too.
Make me, friend or stranger,
fit to wait on you.

Jesus Christ is raging, raging in the streets,
where injustice spirals
and real hope retreats.
Listen, Lord Jesus, I am angry too.
In the Kingdom’s causes
Let me rage with you.

Jesus Christ is healing,
healing in the streets;
Curing those who suffer,
touching those he greets.
Listen, Lord Jesus, I have passion too.
Let my care be active, healing just like you.

Jesus Christ is dancing, dancing in the streets,
where each sign of hatred
He, with love, defeats.
Listen, Lord Jesus, we should triumph too.
On suspicion’s graveyard
let us dance with you.

Jesus Christ is calling, calling in the streets,
‘Who will join my journey?
I will guide their feet.’
Listen, Lord Jesus, let my fears be few.
Walk one step before me; I will follow you.
(Text: John Bell, alt. Tune: Now the Green Blade Rises
Iona Community, Scotland GIA publications)

Prayer for the Peace:
One: We have chosen to be here, forming one body out of many.
All: We are one in the Spirit; we are one in Christ.
One: With us are those we see and those who share our vision
but are scattered across creation.
All: We are one in the Spirit; we are one in Christ.
One: We share a vision arising from differing experiences—men and women, gay and straight, rich and poor, of many races, creeds and cultures that are one with us in this moment.
All: We are one in the Spirit; we are one in Christ.

One: We have chosen to be here in a time of war when we have called for peace.
All: We have chosen to be here in a time of injustice when we have called for liberation.
One: We have chosen to be here in a time of fear when we have called for hope.
All: We have chosen to be here in a time of action as a sign of faith.

One: We have chosen to be here in a time of darkness as a sign of light.

All: We are one in the Spirit; we are one in Christ.

One: Creating and healing and transforming God,
God who makes one of all those
sharing in the hope of faith,
remind us that we are more
than the people in this room
and more than the present time
that we may be your instrument
for peace and justice
in the present time and for all time.
All: Amen.