women's rights in combat

I recently discovered that woman are unable to go to the army for infantry, special armed forces or rangers. Upsets me because i would love the opportunity to go combat in the army.

When i asked why girls are unavailable to this job the response i kept getting is because woman are most likely unable to perform the trainina needed for this position and guys are more likely to rescue girls then fellow males also that woman can not emmotionally handle the stresses of combat.