the guardian has a story Information is beautiful: war games which includes some great visualizations on how militarized different countries are. obviously the US is leading the globe in total amounts, but some of the smaller countries, especially those in constant conflict zones like the Koreas and Israel, top the lists when looked at it on a per 100,000 people basis.
overall though, what becomes clear looking at these pictures is that as a whole humanity (and this sounds a bit like an odd word to use here) spends a shitload of money and resources and ultimately just fighting each other.