The privatization of the US military is a consequence of the monetization of war that went into full swing around the 2000's. Or so I read from the https://en.wikipedia.org/wiki/The_Shock_Doctrine
This passage from a 2011 NPR article on the 50th anniversary of Eisenhower's warning caught my attention:
Eisenhower was worried about the costs of an arms race with the Soviet Union, and the resources it would take from other areas -- such as building hospitals and schools.
https://www.npr.org/2011/01/17/132942244/ikes-warning-of-mil...
Seems especially prescient at the moment.
> the median age in 1940 was 29.0 years, compared to 37.2 years in 2010
[1]: https://www.cbsnews.com/news/1940-us-census-data-released-on...
Here's a good book on it: https://www.amazon.com/Forgotten-Man-History-Great-Depressio...