They can vote on a provisional ballot as well.
What if they're half way around the world serving in a combat zone, what do they do then?
Yes, I understand that the ‘rats will always try to keep the military from voting.
This is EXACTLY why our deployed military should NOT have to depend on snail mail to receive and/or send their absentee ballots. There should be a system in place allowing them to vote online. Perhaps it could be operated through Joint Knowledge Online (JKO).
If they are not sending overseas ballots to the military, then report them to fox news and embarrass and humiliate them them about it, then sue.