The NY Times has an article titled Woman's Crusade, which makes the case that:
In a large slice of the world, girls are uneducated and women marginalized, and it's not an accident that those same countries are disproportionately mired in poverty and riven by fundamentalism and chaos. There's a growing recognition among everyone from the World Bank to the U.S. Military's Joint Chief of Staffs to aid organizations like CARE that focusing on women and girls is the most effective way to fight poverty and extremism.
And you may think of woman being marginalized as being paid less than their male counter-parts, but in other parts of the world it is much more extreme.
Sen noted that in normal circumstances, women live longer than men, and so there are more females than males in much of the world. Yet in places where girls have a deeply unequal status, they vanish. China has 107 males for every 100 females in its overall population (and an even greater disproportion among newborns), and India has 108. The implication of the sex ratios, Sen later found, is that about 107 million females are missing from the globe today.
The global statistics on the abuse of girls are numbing. It appears that more girls and women are now missing from the planet, precisely because they are female, than men were killed on the battlefield in all the wars of the 20th century. The number of victims of this routine “gendercide” far exceeds the number of people who were slaughtered in all the genocides of the 20th century.