Answer:
By extending their arguments to address entire nations, some social Darwinists justified imperialism on the basis that the imperial powers were naturally superior and their control over other nations was in the best interest of human evolution.
Ethnocentric: Imperial nations sometimes believed that their cultural values or beliefs were superior to other nations or groups. Imperial conquest, they believed, would bring successful culture to inferior people. Empires sought strategic territory to ensure access for their navies and armies around the world.
Explanation:
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The Battle of Galveston was a naval and land battle of the American Civil War, when Confederate forces under Major Gen. John B. Magruder expelled occupying Union troops from the city of Galveston, Texas on January 1, 1863.