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Antebellum period refer to the period when American civil war happen. Before the it happen, most people believe that colonization was the most suitable solution to deal with the population of freedmen
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A secondary source is a experience heard by a primary. pick the one using this definition
Anschluss was the name of the union of Austria and Germany in March 1938. It happened after the collapse of the Habsburg. After the annexation, the US criticized the chaos in Germany and formulated a foreign policy in order to respond to Hitler’s aggressive foreign policy. This was a problem for the US and the allies because it showed that Hitler had no care for peace and got even more strongly with the annexation of Austria - it subsequently increased the size of Germany’s military -.