A nation or empire can do it without bloodshed if both countries agree to it. It is called Annexation.
Villages lost many skilled members of the community.
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Answer:
spreading misinformation about the enemy
causing domestic problems
leading allied troops
Explanation:
Fairly sure the answer is: It allowed people to buy and sell goods in a wider market.
Think about it: without coins, people had to barter with mostly short-term goods, but coins held value over time and most people would accept it as payment. However, if you had to use, say, carrots, the guy you're trying to buy lettuce from may not need/want carrots, but he can use those coins to buy what he DOES need.
Hope I helped!