where is it based?
United States.
United States Navy
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. 
who played the female lead in the 1942 film casablanca Ingrid Bergman who wrote its script? Howard Koch and who directed it? Michael Curtiz and who was the male lead in this? Humphrey Bogart how was its initial response? It received "consistently good reviews". can you mention its storyline? It focuses on an American expatriate (Bogart) who must choose between his love for a woman (Bergman) and helping her and her husband (Henreid), a Czech resistance leader. is the male lead related to navy by any chance? He was enlisted in the United States Navy in the spring of 1918. what mission does this navy has? The mission of the U.S. Armed Forces is "to be prepared to conduct prompt and sustained combat operations in support of the national interest." can you name any of its officers? UNANSWERABLE which are its equipments? It operates over 460 ships, 3,650+ aircraft and 50,000 non-combat vehicles.
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United States Navy [SEP] Introduction
The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most capable navy in the world and it has been estimated that in terms of tonnage of its active battle fleet alone, it is larger than the next 13 navies combined, which includes 11 U.S. allies or partner nations. It has the highest combined battle fleet tonnage and the world's largest aircraft carrier fleet, with eleven in service, two new carriers under construction, and five other carriers planned.