Should I join the army?

12N is a decent mos and you will do alot of construction if you go overseas. No mos is completely safe and you may be called upon at any time to go into harms way. Thats why they train you to fight first then do construction. Don't be scared little homie!

12n is just construction worker well technically it's horizontal construction enginerr. You drive a bulldozer and other heavy machinery, you just don't know wear the bull dozer will be. Could be a CONUS base, could be in the sand box. I would never join the army but thats just me.

im not 100% sure about the army, but as far as i know 9 times out of 10 they will not change your mos as that will cause more problems in war than having no one to do that job. also dont know wat 12 nov. is but so long as you know what the mos is yourself and you can pass the school all mos' are good and necessary to have. best of luck.

Hell no! That will mess you up good! Look up PTSD, something they don't like to tell you about. Trust me, you don't want it! And if you get it, it's for life! You'll be f* up in the head and will be someone's b**ch for a long time. Not worth it!

But as to your other questions:

1. No idea

2. Yes, they can. They like to do that to avoid drafts. Then their pretty little wars would stop. And that's bad for commanders!

yes.