[IPS] United Nations -- As the Sudanese Civil War continues to ravage the people of Sudan, conditions for internally displaced persons grow more dire every day. The situation in Sudan is currently the biggest displacement crisis in the world. Famine, violence, and gender-based violence are rampant. Described as "an invisible crisis" by the United Nations (UN) new emergency relief chief, Tom Fletcher, many believe that the humanitarian response has been largely ineffective in tackling the urgent and growing scale of needs.