Concert of Europe: Also known as the Congress System or the Vienna System after the Congress of Vienna, a system of dispute resolution adopted by the major conservative powers of Europe to maintain their power, oppose revolutionary movements, weaken the forces of nationalism, and uphold the balance of power.
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The Spanish, English, and French were the most powerful nations to establish empires in the new lands. Conquest of Latin America by the Spanish Empire Beginning with the 1492 arrival of Christopher Columbus, the Spanish Empire expanded for four centuries (1492–1892) across most of present-day Central America, the Caribbean islands, Mexico ...
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On D-Day, 6 June 1944, Allied forces launched a combined naval, air and land assault on Nazi-occupied France.
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They are all power countries so if they work together they can do a lot.