Our experience in previous national emergencies is of only limited value in forecasting future ones and the role of various segments of the population and various social groups within that national emergency.
Pitzele, Merlyn S.
"Role of Labor in a Future War,"
Naval War College Review: Vol. 4
, Article 3.
Available at: https://digital-commons.usnwc.edu/nwc-review/vol4/iss1/3