Maybe you should tell her that if it is a problem for her when you to go to your military training you can quit, possibly forfeiting your retirement. Think that might shut her up?!
You could also ask her to provide some actual documentation showing how much child care for two perfectly able adults would cost. Good luck to her finding a place that provides that and would give her rates!
The crazy really doesn't stop when you have to deal with an entitled ex and the kids does it? I posted some exchanges between me and my ex regarding a child issue on my thread the other day....more of his craziness. And D12 text me last night that she got in a big fight with her dad over it last night when she was there. I am sure I will hear about it this afternoon when she gets home. :::sigh::: All we can do is try to maintain some normalcy for the kids!
"You can't stop the waves, but you can learn to surf." Jon Kabat-Zinn