Monroe doctrine was the thing that blocked other nations from coming into americas. It was enforced by the british military who were the strongest at time.
Many nations accepted this out of fear of their military.
During the 1800 there was a big economic boom in the northern states. However, the south also had cotton as a leading cash crop during the 1800s.
D. It was an area Germans lived in but was owned by Czechoslovakia
The Sudetenland used to be former territory of the German Empire. Adolf Hitler had expanded German territories through aggressive-diplomacy which Britain and France had tried appeasement.
Because they couldnt stop discrimination from happening
