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May I ask who them is ? possibly more details
The bureau of Indian Affairs was organized in 1824 as part of the "Department of War," since prior to this organization the military had been the go-to organization for dealing with Indian issues.
A summary of the actions of the many aggressive regimes in Europe of the past several centuries would include mostly religious "holy" wars and a desire for territorial expansion.
The Great Awakening, encouraged people to become Christians, and follow God
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Historians generally recognize three motives for European exploration and colonization in the New World: God, gold, and glory. Motives for Exploration For early explorers, one of the main motives for exploration was the desire to find new trade routes to Asia. By the 1400s, merchants and crusaders had brought many goods to Europe from Africa, the Middle East, and Asia. Demand for these goods increased the desire for trade.