“Which branch of the United States military is the most patriotic?”/“The Air Force; they’re US AF.”

A riddle about the United States Air Force (USAF) was posted on Reddit—Jokes on December 28, 2018:
 
Q: Which branch of the United States military is the most patriotic?
A: The Air Force; they’re US AF.
 
“AF” also means “as fuck” (meaning “as anything”).
 
     
Reddit—Jokes
Posted by u/Smithmonkey98 December 28, 2018
Which branch of the United States military is the most patriotic?
The Air Force; they’re US AF
 
Twitter
Jokes OK Please
@jokesokplease
Which branch of the United States military is the most patriotic?. The Air Force; they’re US AF #joke
5:10 PM · Dec 28, 2018·Twee Love
         
Twitter
Bob Golen
@BobGolen
Airmen are super patriotic.  They’re US AF.
9:13 PM · Dec 28, 2018·Twitter Web Client
 
Twitter
Dad Jokes
@Dadsaysjokes
Which branch of the United States military is the most patriotic?
The Air Force. They’re US AF.
5:33 AM · Dec 29, 2018·Twitter for iPhone
 
Reddit—Dadjokes
Posted by u/Noir_Reaper December 29, 2018
Which branch of military is the most patriotic in the United States?
The Air Force, because they’re US AF.
   
Twitter
DocDog
@DocAtCDI
Which branch of the United States military is the most patriotic? The Air Force. They’re US AF.
10:28 AM · Sep 30, 2021·PunsByDocAtCDI
 
Twitter
Bob Golen
@BobGolen
The Air Force is super patriotic.  They’re US AF
9:58 AM · Nov 5, 2021·Twitter Web App