It makes all of our daughter eligible for draft registration, and any future draft. The only thing keeping them out, were court rulings to the effect that since women were barred by law from combat roles, they were not required to be included in any draft.
That is correct, woman in combat does two things. First it immediately degrades our ability to kill the enemy on the battle field. Second the nation would never fight a war if it meant drafting our women. Ergo we will never fight a real war again, since there is no longer any reason to exempt women from the draft.