Who declared cuba a us protectorate?

The United States Military Government in Cuba (Spanish: Gobierno militar estadounidense en Cuba or Gobierno militar americano en Cuba), was a provisional military government in Cuba that was established in the aftermath of the Spanish–American War in 1898 when Spain ceded Cuba to the United States.

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i do not know if this question has options, but a main impact of the federal reserve act of 1913, which created the federal reserve bank, was the international use of the u.s. dollar, which soon became the world's leading currency - particularly during world war i, since many nations around the world asked the united states for money.

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.