Even if we disregard the gender discrimination aspect, the draft is the most blatant violation of human rights present in (some) developed countries.
We need to stop this ritualization of the work that the military does. It is, after all, just a type of work.
During peacetime my answer would be by increasing military spending and attracting more people to military careers and voluntary reserve. During wartime everything goes of course - it's still should be non-discriminatory though.