Nujood is a Yemeni girl, and it’s no coincidence that Yemen abounds both in child brides and in terrorists (and now, thanks to Nujood, children who have been divorced). Societies that repress women tend to be prone to violence.First, those countries usually have very high birth rates, and that means a youth bulge in the population. One of the factors that most correlates to social conflict is the proportion of young men ages 15 to 24.
Second, those countries also tend to practice polygamy and have higher death rates for girls. That means fewer marriageable women — and more frustrated bachelors to be recruited by extremists.
Consider Bangladesh. After it split off from Pakistan, Bangladesh began to educate girls in a way that Pakistan has never done. The educated women staffed an emerging garment industry and civil society, and those educated women are one reason Bangladesh is today far more stable than Pakistan
via Op-Ed Columnist – Divorced Before Puberty – NYTimes.com.