The Fourth Turning by William Strauss and Neil Howe (pg. 276)

In foreign affairs, America’s initial Fourth Turning instinct will be to look away from other countries and focus total energy on the domestic birth of a new order. Later, provoked by real or imagined outside provocations, the society will turn newly martial. America will become more isolationist than today in its unwillingness to coordinate its affairs with other countries but less isolationist in its insistence that vital national interests not be compromised.