Sounds like there's some confusion here. Southwest's military fare is basically a discount off the Anytime fare. Anytime fares are fully refundable, but are not the lowest cost fares available. For the cheapest fare, book Wanna Get Away. If you need refundability, and qualify, book a military fare.
If you're booking last minute, the military fare can actually be close to or lower than the Wanna Get Away one. This is a good use of the military fare.
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