Some Christian leaders in Kenya have commented are worried at the inability of the country's churches to speak with one voice about the violence that has followed disputed presidential election results, leading to 1,000 deaths.
Pope Benedict XVI has made an appeal for an end to the current violence in the African nation of Chad, as apart of a series of conversations to promote reconciliation with justice in a number of war-torn countries and regions.
There are fears that the humanitarian situation in Gaza is set to worsen after a petition to the Israeli Supreme Court, supported by church and other groups, failed to stop the government from stepping up its blockade of the territory.
A senior United Nations official in Burundi has pledged the support of the global body to the peace work of churches and others, paying a tribute to their efforts to stabilise the country after more than 10 years of war.
Christian activists will make symbolic acts of commitment at the Ministry of Defence in London and at other venues in Scotland and the north of England tomorrow, urging a shift from waging war to waging peace in a divided world.
As mediation to solve the disputed Kenyan presidential election enters a critical phase, top-level figures from the two parties have met an international Christian delegation, which asked them to seek a compromise solution.