I wonder if other governments have similar methods for their secretive code names or different methods entirely? The one that popped into my head (perhaps only

I wonder if other governments have similar methods for their secretive code names or different methods entirely? The one that popped into my head (perhaps only because it sounds so whimsical, but yet the goals were so completely contemptible) was 'Operation Cherry Blossoms At Night' - a plan that was formulated by Imperial Japan during WWII (but never acted upon) to perform attacks of biological warfare on southern California. EDIT: For those interested - https://en.wikipedia.org/wiki/Operation_Cherry_Blossoms_at_Night https://en.wikipedia.org/wiki/Operation_Cherry_Blossoms_at_N...