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the policy or doctrine of isolating one's country from the affairs of other nations by declining to enter into alliances, foreign economic commitments, international agreements, etc., seeking to devote the entire efforts of one's country to its own advancement and remain at peace by avoiding foreign entanglements and responsibilities. The term is most often applied to the political atmosphere in the U.S. in the 1930s.Isolationism has been a recurrent theme in U.S. history.

sam houston basically made tx he fought for anrew lead troops in the battle of san jacinto and then became president and james polk

the romans were initially interested in expansion via sicily (which at that time was a cultural melting pot), part of which lay under carthaginian control. at the start of the first punic war (264-241 bc), carthage was the dominant power of the western mediterranean, with an extensive maritime empire