Sudan is recognised as the world’s largest humanitarian crisis in a conflict marked by both sides’ brutality and intransigence. An international conference held in London this week pledged millions of dollars in aid but made no progress on ending the war. Instead, regional powers, who hold the most sway over the military rivals, disagreed on Sudan's political future. Life after peak aidThe numbers show what humanitarian budget planners have been charting for a couple years now: Donor aid budgets are backsliding. Humanitarian aid – some 10% of ODA – seems to have taken a bigger hit compared to overall totals.