In this study, we analyse humanitarian and development water, sanitation and hygiene
(WASH) approaches in South Sudan, and consider how and why siloes have arisen between
the two. To improve complementarity, we identify a need for common principles for WASH
in protracted crises. These common principles comprise a short set of pragmatic, mutually
agreeable ways of working for all external agencies that support the delivery of WASH,
whether they identify themselves as part of humanitarian or development communities