Military experience can also be a rare gateway to an alternative teaching license without going through a standard teacher certification program. In states that may be struggling to find teachers in high needs subjects like math and ESL, alternative licensing pathways exist that recognize expertise in combination with strong moral and professional character. Your military background offers that in spades.
If you happen to already have college degree in any field and are capable of teaching a high-needs subject in a state that needs teachers, you may be fast-tracked into the classroom before completing a state-approved teacher preparation program.