Getting the most from after action reviews to improve global health security

Background After Action Reviews (AARs) provide a means to observe how well preparedness systems perform in real world conditions and can help to identify – and address – gaps in national and global public health emergency preparedness (PHEP) systems. WHO has recently published guidance for voluntary AARs. This analysis builds on this guidance by reviewing evidence on the effectiveness of AARs as tools for system improvement and by summarizing some key lessons about ensuring that AARs result in meaningful learning from experience.