hi there,
I'm not a military mom but a former military dependent whose father was away in vietnam...and a mom to a 3 yr old boy. What works for me (and I'm sure you're familiar with since they're from CO) is love and logic. check out http://www.loveandlogic.com/
What doesn't work is repeated yelling or spanking.
I buy the love and logic books on cd and listen in the car when i'm out and about or if you have a quiet moment at home. I was just listening to one yesterday with an exact situation on yours. a parent who REPEATEDLY tells her kid to do something and they only listen when she escalates into anger. L & L has methods where you say something once--and the quieter the better. in a loving way then have a consequence if you don't get a result such as a time out.
there's more to it than that. also, tremendously helpful to me was finding a L & L facilitator who led classes thru my son's church preschool. i had a person who could field specific issues i didn't see or hear about on a book on tape. she fielded questions after the seminar via email.
i'm sure if you google Love and logic in your area or look on above website you'll find someone. but in the meantime. check out the cds on tape via amazon--order one used.
Also on the CD (I listen to them over and over every few mos b/c i forget stuff or new situations crop up) yesterday was a parent saying they knew their kid was doing something to push their parents buttons. of course! It's exciting for a kid to think they have that kind of control over a parent to see the parent flip out. the key is not letting them push you over the edge by being firm in a consequence after the first reminder. I won't at all do justice in a short response to recap the book so I'd strongly suggest hearing it from the source. i can tell in my neighborhood which parents use love and logic and who doesn't.
also, it sounds like sitting your boys down for a family meeting and letting them know things are about to happen differently (in an empathetic loving way) and hear how scared and how much they miss their dad and that you need their help to get thru this.
I wish you the best. I'm a single mom so I know how hard it can be doing it solo which is currently what you're having to do...with the added part of being fearful about your husband being away. good luck and i hope you find some support.
L.