Waging Culture War

Noah Millman believes that "foreign policy, at least on the GOP side, is now basically a branch of the culture war": 

It’s in the last two elections that the trend of foreign policy being treated as part of the culture war – at least by the GOP – has become dominant. Mitt Romney is the exemplar in this regard; his entire foreign policy argument consists of saying that he knows America is exceptional and President Obama does not, and that Obama has been making too many concessions to America’s enemies (without any clear explanation of what those concessions might be).