Air conditioning is where it started....honestly
Average fire support base in Vietnam have AC?
Nope
I grew up south central Mississippi
Average summer temp 95-100
Humidity around 70% to max...about like Parris Island ...maybe even warmer no breeze
I first had air conditioning in nearly 1973 when I was 15.5 years of age
I’m living in central TN without air downstairs now for two weeks plus due to a dearth of parts these days....
17-18 year olds can handle no air ....attic fans are reasonable
The Air Force had air conditioning in their O club at Danang. Cold milk, too.
Maybe that’s why we hung out there. Plus, it was fun when the F-4 crews would come back and ring the bell; they’d just bagged another MIG up north.