Answer:
Opposing sides were dug into trenches, which led to higher casualties and poor conditions for soldiers but they could rarely advance because of improved technologies such as machine guns which gave a tactical advantage to defensive forces and artillery.
Explanation:
D) Gettysburg. It was the most high casualty rated battle of the war. After that battle, the Confederates lost every battle of the war because they lost an enormous amount of replaceable men in that battle.
a. Air raid on Pearl Harbor
b. nothing
c. September 1, 1939 - Germany invades Poland
d. Germany and the Soviet Union sign a non-aggression pact
I'm guessing its a and c
1. philadelphia was the largest city in the colonies and it was the seat of political power
2.the obstacles washington faced were lack of commitment, enviroment being cold, local farmers hoarding food for profits
3. what boosted the armies confidence was the troops becoming slowly professional
4. the conditions the continential army faced were camped in crude log cabins and cold conditions
I believe it was Sickness of FDR. He had polio so A should be the answer