Not without the Platinum AmEx card or other Delta Sky Club cards
If you're military you can get the American Express card with the annual membership cost waved which gives you access a large amount of lounges at many airports.
The answers you received from other people were absolutely correct. Good luck!
No, active duty service members are not afforded free entry. Sorry
Military has nothing to do with Skyclub. You either buy a membership, get a credit card that gives you access, or are a Diamond Elite status with Skymiles which gives you access.
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