What additional information would you need to have that would allow you to conclude that the Battle of Britain was a turning point in the European Theater of World War II?

first second and third

explanation:

the conditions that made the byzantine empire vulnerable to attacks by the muslin turks were the sack of constantinople by western crusaders, the conquests of the sultanate of rum, presence of rival kingdoms and finally the set up of fiefdoms at the empire which were owned by the ghazis (turkish warriors).

on my last question