“Three U.S. C-130 cargo planes dropped 66 total bundles, equating to about 38,000 pork-free meals, into the territory on Saturday morning. The bundles were split between three planes, the official said.”
“The airdrop is expected to be the first of many announced by President Joe Biden on Friday. The aid will be coordinated with Jordan, which has also conducted airdrops to deliver food to Gaza.”
You can’t really see it clearly but my guess would be it’s a unit hat. The military issues soldiers unit hats to wear as an alternative to normal headgear sometimes. It’s a morale thing since the unit caps tend to be more like baseball caps than military headgear.
here is a shot of some air force civil engineers wearing their unit hats.
Army parachute riggers wear those red hats so they can be picked out of the crowd to assist paratroopers. It could be them or their equivalent in the Air Force, but I’m not sure if Air Force riggers wear the same hats or not.
The people in the photo are rigging the chutes on those pallets and are either Army or Air Force based on the camouflage pattern.