Daddy is at Army Work

So this morning was insane at our house.  We were running behind and it just drives me batty to be late.  Anyway we got out the door and I got Buggy to school.  On the way out of the school parking lot my Squishy asked me a question that I was just not prepared for.  She asked me, "Why does daddy have to go away for Army work?"  I was speechless.  How do you explain that to a 4 year old?  I just did not know what to say.  How do I explain to a 4 year old that your daddy is defending our country?  To be honest, I am not emotionally able to discuss it with her.  I do not want my kids to see how broken I am right now.  He has not even been gone a week and I am already falling apart. 

I know that this is not what anyone wants to read if they are getting ready for a deployment, but I am trying to be as honest as I can be here.  I am not handling things well and I need support.  I guess part of the problem is that I am such a private person and to be honest again I do not have many close friends.  Our lives are so crazy that I, like more women, do not take time for myself.  I am open to suggestions if anyone has any?