The document discusses the strategic environment facing the U.S. Navy and analyzes historical eras of national security policy. It outlines five eras: the Continental Era, Oceanic Era, Transoceanic/Cold War Era, Global Era, and the emerging era of budget cuts and strategic review. The Global Era has seen unprecedented levels of military activity and defense spending. Recent budget cuts of $489 billion over 10 years are driving a strategic review to balance national security needs with economic imperatives. Getting the economy in order is now a strategic priority.