Vatican City, is a landlocked sovereign city-state whose territory consists of a walled enclave within the city of Rome. The City is the smallest sovereign state in the world at 0.44 square kilometres (108.7 acres). Vatican City is an elected monarchy that is ruled by the Bishop of Rome — the Pope. The Pope is ex officio head of state and head of government of Vatican City and the term Holy See expresses the totality of his governance and pastoral ministry. The Vatican City State has the distinction of having the smallest and oldest regular army in the world, the Pontifical Swiss Guard. Vatican City also has its own post office, fire brigade, police service, commissary (supermarket), bank, railway station, electricity generating plant, and publishing house. The Vatican also controls its own Internet domain (.va). Saint
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