My mistake. Seemed so ‘Johnsonesque’ that I didn’t bother looking it up.
you weren’t wrong...i believe Vietnam was also referred to as a police action. can’t tell you by who first or when...
what was vietnam called ? war ? conflict ?
https://libguides.uky.edu/vietnamwar
https://www.google.com/search?q=vietnam+police+action&sourceid=chrome&ie=UTF-8