Displacement crisis threatens to overwhelm South Sudan
World's newest nation struggling to build up state institutions, end tribal and rebel violence, and provide basics to its people
2.7 million S.Sudanese to need food aid in 2012-U.N.
Africa's newest nation struggles to build up state institutions, end violence and overcome an economic crisis
UN warns conflict may worsen Somalia famine, needs $1.5bn
Somalia request is part of global humanitarian appeal for $7.7 billion to help 51 million people in 16 countries next year
Central African Republic's medical emergency out of control -MSF
Medical aid charity says mortality rates in some areas three times the emergency threshold
Sudan border fighting displaces over 400,000 people-U.N.
Aid agencies denied access as the humanitarian situation deteriorates
Women building peace in Sudan, Bonn, Oslo
Women across the world are playing an increasingly important role in the peace-building process