Like the others, I want to thank you for your service. I'm so appreciative of everything that our armed men and women do so I can do what I do.
I am a junior high and high school science teacher and school counselor. It's not something that will make you rich, but it is a very rewarding job, most of the time. Sometimes it's just challenging as hell, but mostly good. It has given me several opportunities to showcase my students abilities as well. Last year we started a full scale catapult contest, and we had 8 schools show up with different styles of catapults and trebuchets. We made a day, a school day, of shooting 16 pound bowling balls as far as we could, and the students had over 400 spectators come to watch the event. It was a ton of fun, and allowed my students and I an opportunity to combine our loves of physics, ballistics, the outdoors, and building that was simply an amazingly fun learning experience! I just shared that to show one of the rewarding experiences.
Here is a link to check it out if you want to: Thrills In The Hills
Anyway, teaching is always a job that will be in demand. Best of luck in whatever you choose!