How did dollar diplomacy prevent costly wars

America extended it's influence on other countries with business and trade.

Explanation:

Dollar diplomacy means that the country is trying to extend the influence of it's power on the other countries o the world and this is mostly done because of the financial powers that the country has.

The dollar diplomacy here stands for the power of the dollars of the United States of America which influenced other countries of the world with the help of the trade of the United States with other countries of the world and the control of the business of this country.

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