Originally a plan for an entry for the Machine of Death anthology.
A way is discovered to determine the fate of anyone. However, it's painfully vague at times, the mode of death oft described in no more than 2 or 3 words. However, with inevitability, comes a new weapon. If you know how someone is going to die, you can use that as an advantage.
People with highly unlikely, extremely specific or otherwise impossible deaths get recruited and trained as super-soldiers, since they are almost guaranteed not to die. High casualty, collateral damage-causing deaths are deployed like suicide bombers, banned from being near a nations own assets and sent to live in strategic targets ni enemy territories.
Lots of ideas here, how to cheat fate being a prime example, the social ramifications of this, etc.