The vast majority of women in the draft age demographic are not fit for combat duty. This is a size issue for many; they are either too large or too small to be useful in close combat. There are, of course exceptions, and there are also many positions in the military which don't require demonstrative fighting skills after boot camp. Drafting women specifically for the purpose of combat sounds like a desperation move in a war certain to end in defeat, not because the women are fighting, but because there weren't enough able-bodied males to conscript.