The Germans were well on the way to defeating the RAAF through a consistent policy of targeting airfields and other RAAF facilities. The RAAF pilots were outnumbered and getting more and more fatigued. After the RAAF conducted a minor bomb attack on Germany, Hitler flew into a rage (as he loved to do) and ordered that the Luftwaffe switch form targeting the RAAF to attacking London etc in the Blitz. This gave the RAAF the time it needed to recover and win the Battle of Britain. If the Germans had stayed after the proper military targets Britain would most likely have run out pilots and lost the BoB.