Here is my take. I don't expect Chaim to agree %100, but at least I'll present my logic. If a woman wants to help Israel defend itself, that is respectable.
If she is in the military, she should have to go through the same rigorous training and show the same military appearance of all soldiers, except for when the mission calls for something different.
This post makes an interesting point that she is a target to be kidnapped. Woman who serve combat roles in the military should be required to shave their heads just like the male solders. By showing the appearance of a standard soldier rather than a princess, the women are less likely to become kidnapping targets and less likely to distract male soldiers on the job. Face it, how many people here are attracted to bald women.