Dictatorship. It does not give anyone power to make a decision other than its own self appointed government. Democracy is the opposite.
Are you talking about the colonial times? Basically, in the colonial times the English sought to establish new settlements in the places which today as a result have a big English-speaking white population ( so that's how you know they had establishments there)- so among others Northern America- today's USA and Canada and South Africa.
A president can be impeached for a highly dangerous crime. president Nixon was impeached as was A. Johnson Clinton, twice. an impeachment apon a president has happened only three times.
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The United States is said to have a mixed economy because privately owned businesses and government both play important roles.