The government type in the United States is called a Republic. What type of government does your country have? Explain the different parts of that government. For example, in the U.S. there are 3 branches of government: Executive, Legislative, and Judicial. Many countries also have these 3 branches of government. How do they choose their leaders? How long do they serve? Has your country always had the same type of government or has it changed?
CIA Report link
These two sources are nice for finding updated factual information on your country's government.