What if at the end of WWII the Soviets decided to attack Western Europe and were able to take France and Germany. The estimates I've seen suggest that they would have had a 4 to one advantage over the RAF and if they attack soon enough could have won the Second Battle of Britain. How would the Brits go about preventing this? Forces involved would be the Spit, Vampire and Meteor vs the Yak 9DD, Yak 3D, Mig 9, Yak 15, IL10, Tu2, Pe2. Of course the Brits would have the VT fuse and their superior radar. What other tactics or SOP could they use to mitigate a 4 to 1 disadvantage? How would they prevent their airfields from being blanketed 18 hours a day with Red ground attack aircraft covered hoards of Soviet fighters?