I would say its because no one really decided to change anything. No one during the old ages really knew how to do anything and only used what they had and what was closest to them.
Answer:
thank u for the free points.much appreciated.
Explanation:
Ok, so that there is a bunch of stuff. There is evidence that President Roosevelt knew there would be an attack on Pearl harbor, but he decided to let it happen so that the US would be in on the war (we were not before the attack).
There's not a straight forward answer, but I hoped this helped!
By the time American troops entered World War 1 the Allies were exhausted after years of fighting. The correct option among all the options that are given in the question is the third option or option "c". The entry of Americans in the war boosted the morale of the Allied army. I hope the answer comes to your help.