It was used in the Air Force as well. It was issued in Basic Training and deployed locations.

https://www.dvidshub.net/image/44435/eagle-cash-has-landed-a...

https://www.af.mil/News/Photos/igphoto/2000452297/

https://www.afcent.af.mil/Units/332nd-Air-Expeditionary-Wing...

I'm not denying it exists (it's obviously a thing) but when I went through basic, they had us bring a voided check to set up direct deposit. We never had anything like this. Also I used my USAA debit card with zero issues while deployed in Iraq/Afghanistan/Kyrgyzstan. Very strange!

Eagle Cash makes me think of something related to the World Space Commission[1][2].

But, apparently the US Dept. of the Treasury[3] manages three kinds of payment cards, EZPay, EagleCash, and Navy Cash.

Both the Army and Air Force use EagleCash[4][5].

There may have been some consolidation[6], but EZPay and Navy Cash still seem to have presence[7][8].

Note: previously there were four programs[9], once of which was Marine Cash.

[1]- https://en.wikipedia.org/wiki/Space:_1999

[2]- https://paizo.com/threads/rzs2jizp?Space-1999The-Thirty-year...

[3]- https://en.wikipedia.org/wiki/Stored-value_card

[4]- https://www.af.mil/News/Article-Display/Article/122557/eagle...

[5]- https://www.fiscal.treasury.gov/eaglecash/organizations.html

[6]- https://www.usafmcom.army.mil/News/Article-Display/Article/1...

[7]- https://fiscal.treasury.gov/ezpay/

[8]- https://fiscal.treasury.gov/navy-cash/

[9]- https://www.secureidnews.com/news-item/us-military-relies-on...