All that's old is new again.

Steve Blanks' "Secret History of Silicon Valley" details the emergence of that tech hub beginning with WWII and the "radiation lab", which helped develop radar.

<https://steveblank.com/2009/03/23/if-i-told-you-i%E2%80%99d-...>

Quite a few HN submissions over the years: <https://hn.algolia.com/?q=secret%20history%20of%20silicon%20...>.

Those of us who can remember the 1980s / early 1990s, prior to the defence build-down following the end of the Cold War might recall quite a few defence-related establishments in and around Silicon Valley, in its original scope centred on Santa Clara County and the Santa Clara - Palo Alto region.