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Across 1. areas where another nation has economic and political control 4. Commodore in the U.S. Navy who played a leading role in opening Japan for trade 7. dealing with other countries in an aggressive manner often using the threat of warfare 9. a person who gives opinions about books, movies or others forms of art or a person who disapproves of someone or something 11. building empires by imposing political and economic control over people in other parts of the world

Down 2. historian who had put forth the thesis that the western frontier had defined and developed American history 3. to keep out or expel - to reject or not be considered 5. avoiding involvement in other countries affairs 6. naval captain and author who believed that American strength and security depended on a strong navy and aggressive international trade policies 8. the belief that American settlers were destined to expand and occupy the entire continent from the Atlantic to Pacific ocean 10. the work of maintaining good relations between the governments of different countries - skill in dealing with others without causing bad feelings