War
Don't send them to war in the first place even if you DO plan to take care of them afterwards. With very few exceptions, wars are about money. Young men go to die, and they are usually poor young men, so rich people can make money. We gussy up the motives behind each conflict. You know, "weapons of mass destruction," or "domino effect," or "making the world safe for democracy," or retaking the holy city from the infidels, or "glory," or "'weaning those ignorant millions from their horrid ways,'" but these are just masks. WWII, of course, was a different matter.