[surely_you_jest]

I like "GI" too. One great thing about it is that it can only refer to US military personnel.

This USAF retiree agrees with you, and for the reason you stated.

[FairWitness]

I like "GI" too. One great thing about it is that it can only refer to US military personnel.
This USAF retiree agrees with you, and for the reason you stated.

"G.I." seems to be gaining ground as the favorite here. "surely_you_jest" indicates it is acceptable to a "USAF retiree". Do other the other services, in addition to the army, agree it is a good term for all?