PATH and our partners implemented the Enhanced Diarrheal Disease Initiative in 2011 to tackle the leading killers of Cambodian children under five years old: pneumonia and diarrheal disease. The program successfully strengthened policies related to diarrheal disease and pneumonia and implemented a new integrated package of services within rural communities. This document is a condensed version of the case study Tackling Pneumonia and Diarrheal Disease Through Program and Policy Coordination.