I found this on the internet today:

(1991 figures are unavailable.)
If this chart is correct, world military spending today is again experiencing an increase. The purpose of militarization is to prepare for war. Once a region, or the planet, is fuly militarized, there can only be three possibilities:
1. Continued militarization, economic stagnaion, growing fear, paranoia and distrust further fed by rising taxes, debt, or inflation, and possibly an unstable cold war maintained by proxy wars.
2. Controlled and gradual demilitarization through international treaties, alliances, and negotiations.
3. All-out war.
If this chart is indeed correct, then it would seem that we're soon going to find ourselves in one of the positions above. Personally, I'd hope we can start demilitarizing before WWI repeats itself.

