The GEF-6 Replenishment strategy envisaged supporting initiatives to address the water-energy-food nexus. Regarding IW, tradeoffs in GEF's "Water-Food-Energy-Ecosystem Security Nexus" were recognized among challenges related to the implementation of Strategic Action Plans (SAPs).5 GEF:IW projects have traditionally tackled intersectoral issues, and the Transboundary Diagnostic Analysis methodology is a well-established approach for addressing transboundary issues from an ecosystems perspective. This is suggested by the interaction of nexus work under the Water Convention with several GEF-funded IW projects, notably in the Kura, Drina and Drin basins (table 10).