Make money, not war

Back in February, it was reported that Chinese aimed to send tens of millions of workers to Africa.

An estimated 750,000 mainly rural poor have moved there ... working on projects to build railways, construct electricity grids and even farm the land.
... officials want more of China's surplus rural population of tens of millions of people to follow them, saying they will earn money and help the continent to develop.

Obviously, this measure is aimed at tackling rural unemployment. However, this policy is more intriguing once one considers that these workers being sent abroad are more likely to be male than not. This may be another strategy for tackling the gender imbalance: exporting young males abroad so they won't make trouble on the home front, thus defusing the threat posed to political stability by the youth bulge. According to a report last year:

China will have 30 million more men of marriageable age than women in less than 15 years as a gender imbalance resulting in part from the country's tough one-child policy becomes more pronounced, state media reported Friday.

The numbers line up pretty well for order of magnitude.