At thw beginning of 1943, the allies agreed to seek from the axis powers nothing short of

Unconditional surrender.

wisdom

explanation:

the fact that that the teachings on the cosmic order comes from, or through, the heart center

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).