How many troops were there at the winter at valley forge

around 12000 troops were there

varies from many to over 2,000.00

2018 means 2018 ce or common era

there have been other eras too including bce, which included way more years.

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).