Thinking about her birthday must be difficult. I'll be the devils advocate for just a minute (I love that role!), You could take the high road and send her a card at least....just a neutral, happy birthday card. Or go above and beyond and send her a tiny, token, unique gift from Iraq. Think about your long term relationship with her....she is still the mother of your children. Can you show her how you want (and deserve) to be treated?