"now…the frontier has gone and with its going has closed the first period of american history." ~ frederick jackson turner, the frontier thesis 1893 what kind of foreign policy does turner's thesis suggest as a result of the closing of the american frontier?

In the 1950s, the u.s. government encouraged american jazz musicians to perform in the soviet union, which was an enemy of the u.s. at the time. of what foreign policy goal is this a good example? strengthening world economic growth improving education for the global population advancing the growth of democracy and good government increasing understanding of american values and creating a receptive international environment