You should have stood by your guns (no pun intended), the history books acknowledge that after the French surrendered, Britain was stood alone against Germany, everyone else in Europe had been conquered or surrendered.
Fearing the Navy would be too big an opponent for a land invasion, the Germans launched a massive air offensive with the intention of wiping out first the RAF then factories munitions etc, they did eventually change tack and target homes as well. Nosealls right when he says 'German military superiority', the Luftwaffe had four times the number of aircraft the RAF had, we somehow managed to crush the fokkers.
"Never in the field of human conflict was so much owed by so many to so few."