A policy of licensing boy births (coerced by revocation of social benefits), or a ratio requirement of conceiving n+1 girls for n boys to qualify for social security, or something, can go a long way to help prevent Chinese style tens-of-millions of excess men overhangs (due to selective abortion of females). I'm not 100% sure, but I sense there being a mild excess of women vs men would have a cooling effect on both international and domestic tensions...

... then again, I am a self-interested heterosexual man. :^)