All the people there couldn't do any thing about natural disasters because you cant stop it and you never know when it would come and be there. also it made tons of solders die and it made the army loose tons of people and that made them able to war.
Well back then and if you had allot of people that didn't like you and you were famous you would most likely to die. also they killed thirteen letters because they were not doing the right thing and that led to the fall of Rome and that made the soldiers mad.
They had no armor and that is why most of them died and that is why don"t they don= win most of the wars. Also they didn't have allot of money to get the armor and they just dint like putting it on.also that made the army go down and made the army week and that was good for the bad guys because they could attack at any time.