It's tricky.
1) Men who have seen women wounded in war have been shown to suffer much more severe trauma than those that have not.
2) Men have less complicated bodies, and are less prone to complications from injuries than women.
3) Men instinctively act to protect women in danger, regardless of the amount of training they receive.
4) This one was raised by a member of the Australian Defense Force, and equality aside it is a good point. It will result in more female casualties than male, as women do not have the same physical strength as men and the majority of conflicts have all male armies. Women faced with hand to hand combat with men are more likely to be injured or killed than men.
I have not made up my mind about it, but the arguments against it are quite compelling, just as the ones for it.