Germany was with the terms of the treaty of versalles

This is false.

Germany was blamed for the war in this treaty and it imposed heavy debts on Germany.

.elections are held to determine who serves in congress.

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).