Who fights, and who pays | The Economist
▻http://www.economist.com/news/international/21699135-who-fights-and-who-pays
Contributions to the cost of peacekeeping are worked out using a complicated formula that includes economic heft; America pays more than a quarter of the total, and the top ten countries account for four-fifths between them. But when it comes to personnel, the pattern is very different. Since some of its men were killed when a helicopter was shot down in Somalia in 1993, America has almost stopped sending troops; it now has only 74 military personnel involved in peacekeeping, only half of them soldiers.
Altogether, the top ten budget contributors supply only 6% of personnel; African and Asian countries provide the lion’s share. Tiny Rwanda contributes 6,140 military personnel but almost no money. The UN pays countries $1,330 a month per soldier, meaning that peacekeeping is lucrative for poor nations.