In Washington, where for good or ill I live, one must have and maintain a license to teach in the public schools. To get this license, one must have various credentials and pass assorted tests and background checks.
I propose the addition of one small item to the requirements. The successful completion of a term of military service in the armed forces of the United States prior to being granted an initial license. I.e., in addition to a teaching degree a potential licensee would need to present a DD-214 marked "honorable discharge".
Current teachers are unaffected by this wee change. As time goes on, I suggest a cultural change may occur.
My experience of veterans, while anecdotal, has been largely positive. And I find that the percentage "common sense per capita" of my limited sampling is notably higher than that of the general population. I'd suggest this is the culture we want passed on, rather than a power-blended mixture of anti-American liberalism/green propaganda/anthropogenic global warming cultism.
Beyond that, I'm fairly ok with the notion that if someone puts in their 3-6 years of service where they are potentially in harms way...that they have "dibs" on a fair chunk of public sector jobs. Teaching, postal service, etc. Things that need doing, but that can be springboards to greater success.