Biên Hòa, Việt Nam - GI at his bunk.
This fellow a transfer from another unit had accumulated a lot. I was surprised he had so much to display.
The Quonsets even without air conditioning were comfortable, however we were there only in the evening when it was cooler than the average high temperature in the day.

Screened windows allowed a breeze to flow through & helped cool off the metal walls of the building.
Sleeping could be a challenge - rockets, usually aimed for the adjacent airbase would definitely wake you up.
Rats, another inconvenience, could be heard in the walls & sandbags at night. - 1970