I don't know how/if I should respond to her email (although I do want to send her CF's article from CNN, but I've been there with the articles, the books, it just irritates her.)
If you know the articles will irritate her, don't send them. Just tell her about the airplane tickets for the kids and that is all. Give us the articles here.
Detaching is the hardest thing! Detaching from the misery that your wife imposes on you will be healthy. I am proud of all you are doing to maintain contact with your kids. (I didn't mean you were calling sporadically because you didn't care.....I just thought it would be difficult because you're in Iraq!).