We could do a lot of good if we didn't spend so much on war!

I quote from The Cost of War Calculator via Zunia:

The Cost of a Single B-2 Stealth Bomber Is $1,000,000,000. This could provide 'Any One' of the following resources:

• 2,564,102,564 Meals For Starving People.
• 1,150,510 Clean Water Wells.
• 31,446,541 Adult Cataract Operations. Restoring sight to the blind.
• 53,504,548 Children supplied with school books for a whole year.
• 1,000,000 Landmines removed from the ground.
• 89,126,560 Water Filters. Poor families in places like Cambodia, have no choice but to drink water full of bacteria and parasites. Water filters saves lives by screening out small but deadly bugs.
• 100,000,000,000 Chlorine Tablets to make water safe to drink.