The United States is needless to say, and interesting country. Throughout it's history, it has absorbed numerous social groups and nationalities from far-flung(relatively speaking) corner of the world. Hence, what is American? One may say "Apple Pie", but like many other "American" food's like "hot dogs", these have predecessors in the form of various German in particular cuisine. One could say "Starbucks Coffee", but if one has sampled a variety of coffees in their day, they would of course know that arguably perfecting coffee and pastries has been an Austrian open secret for many centuries. Thus, one may ask ones self, how does one lead a popular movement, in a country that is so hard to pin down. When common denominators, like arguably, "ketchup", which was originally American, is usually overlooked, or not really identity based, one may ask one's self, how would I theoretically speak the common language of all of these people?
Of course, one could try to perhaps relate one's ideas to some common American pass time like sports. Otherwise one could draw on a lexicon, of words which when used in a public context assume an amorphous identity. The most notable perhaps of these words, per se, are recently anyway, perhaps, "War", and "Freedom", and in some cases both are combined to create the ultimate vague double-whammy of surreal notions.
Though this phenomenon(magical language per se) takes on local guises wherever it is put into use, it is by no means, a uniquely "American" phenomenon. For example, one can see similar uses of this sort of vague, uniting lexicon, in various African colonies per se during their times of uniting vs oppression, in may cases along the West African cost/and in Central Africa. For a more thorough discussion of this, one could type "messianic movement", "Africa", "colonialism", into Google and get something like this paper which presumably does a thorough job hashing the matter out;http://www.bjournal.co.uk/paper/BJASS_8_1/BJASS_08_01_07.pdf. Paper is entitled, "The Roots of African Nationalism; A Conceptual and Historiagraphical Discourse", and surely its packed full interesting reflections on this topic. But for the American version one need not look very far for similar academic discussions.
As someone who spent at least some-of their "formative years" being educated on the US's east-cost, I feel as though its fair to say that an "east cost" favorite is Andrew Delbanco. Andrew Delbanco, wrote a book, which in my opinion, really helps one better understand the true intention/meaning of various recent US political movements, and one can get at his thoughts on American Messianic movements via his book; (whose title sounds familiar, to another individual's writing's title); his book is entitled "The Real American Dream; A Meditation on Hope".
In his book, Delbanco, writes on the oft borrowed concept of "Freedom", and the like, and further discusses the way various causes have borrowed the term to fit into their ideological platform/message in various ways.
Hence, as I came across this recent article on Zero-Hedge, entitled "Obama Issues Executive Order to Prepare for Climate War", (http://www.zerohedge.com/news/2013-11-01/obama-issues-executive-order-prepare-climate-war) what immediately popped in-to mind was a discussion of these messianic movements, and the way that words like Freedom, War, etc. are often used to mean quite simply "movement", or "unifying(hopefully) popular movement". Hence, when one often hears of various "Wars", and types of "Freedom" as used in the American political context, one may perhaps feel rest assured, that these "wars" may not involve guns or weapons, and that often this "freedom" may not necessarily truly be related to notions of "liberty", for as has been hashed over by academics such as Delbanco and the like, America has seemingly always been a land of "Wars", and "Freedoms", whose true meaning, is in essence, quite simply, a reference to a tool used to motivate, or inculcate I guess one could say, a popular movement, or sentiment of some sort.