The Cardinal Secretary of State is a high-ranking official in the Vatican City and serves as the head of the Roman Catholic Church's government. Appointed by the Pope, this position is responsible for overseeing the affairs of the Church and managing its diplomatic relations with other countries. This role is often compared to that of a prime minister, as the Cardinal Secretary of State coordinates the work of various departments within the Vatican and advises the Pope on important matters. The position is typically held by a cardinal, emphasizing its significance within the Church hierarchy.