Answer: The American environmental landscape prior to the 1960's.
Explanation:
The first secretary of the United Nations was Trygve Lie.
Salt. Duh. And aligators.
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World War I--in the end WWI is connected to the annexation as the Serbian attack on Archduke Franz Ferdinand was a response to the annexation.
Following the Austrian annexation of Bosnia and Herzegovina, Serbian nationalists called the Black Hand planned an attack on the Archduke Franz Ferdinand's visit to Bosnia. This assassination, triggered the events which led directly to the outbreak of World War I.
Answer: The Indian Remove Act
Explanation: Native Americans lived on the land settlers wanted. President Jackson thought it was impossible for Native Americans to live as independent nations within the borders of the US.