Quite seriously, I thought about what might be most meaningful to you on this question of national power, and I came to the conclusion that a case study, or rather two case studies, comparing the uses of the elements of national power by the United States might be most useful to you, because these case studies are, what you might say, the spice of life.
Stoessinger, John G.
"Power and Elements of National Power,"
Naval War College Review: Vol. 21
, Article 4.
Available at: http://digital-commons.usnwc.edu/nwc-review/vol21/iss3/4