Beacause of sea waters and heights
Following WWI in North America and most of Europe there was a recession that led to economic decline. The recession in the United States did not last long and was followed by nearly a decade of major economic growth that made the United States the most powerful economy in the world.
Is this a random question? If so, I think that countries on the losing side of the war have already lost to the opponent for the reason they were fighting for. Is that not punishment enough? On top of that most countries that go to war could be 3rd world countries and probably can't afford to lose anything else or can afford to go to war. Respond to my answer if it were not quite what you were looking for so that I can give feedback on what you were looking for. Because your question didn't provide much to go on. :) im open to suggestions and corrections.
A letter written to a family member by an America soldier fighting in the war.
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Advances in technology in the European Age of Exploration made possible for explorers to travel across the sea. Two examples of the many innovations could be the <em>Caravel</em>, a small to medium sized ship that was mostly used for fishing and exploring since it was fast and easy to maneuver, and the <em>Magnetic Compass</em> that helped explorers know what direction they were headed so they could reach their destination.