This document discusses leadership in difficult times using the Battle of Britain as an example. It describes the strategic approaches taken by Hugh Dowding and Keith Park in leading the Royal Air Force's Fighter Command against the German Luftwaffe. Park was able to focus resources effectively and implement an agile defense strategy through clear communication and empowering pilots. This allowed the outnumbered British forces to defeat the Luftwaffe and turn the tide of the battle, demonstrating the importance of having a clear vision, focusing resources, communicating integrated plans, empowering teams, and embracing complexity when leading during a crisis.