World Day to Combat Desertification and Drought falls on 17 June. According to the South Sudan Infrastructure Action Plan (2012), less than 5% of the country's cultivated area is irrigated, making it difficult to ensure food security. As Secretary-General Ban Ki-moon stated, "Sustainable land use is a prerequisite for lifting billions from poverty, enabling food and nutrition security, and safeguarding water supplies. It is a cornerstone of sustainable development." Photo: UNMISS/Martine Perret. Click for larger image.