Roosevelt wrote Naval Operations of the War Between Great Britain and the United States, 1812-1815 with help from two uncles and extensive primary-source research. Its opening list ranges from Jefferson's peace policy, the Berlin and Milan decrees, and the Orders in Council to the Chesapeake-Leopard affair, blockade, ships, armament, personnel, and gunnery. That breadth makes the study more than a celebratory battle narrative. The book predates Mahan and Corbett and places Roosevelt among the early naval theorists. He was consequently described as unusually qualified when he became Assistant Secretary of the Navy in 1897. His later offices gave him the power to put naval ideas into practice.
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Roosevelt's War of 1812 history
Roosevelt's early history of the naval War of 1812 made him a theorist before he entered national office.